Re: [BangPypers] Favorite tips/techniques
Saager, As per python module-import semantics, sub-modules don't end up as names in the package-module[*] unless explicitly added. I didn't get it, what you mean by package-module[*] ?. -- One simple test. dir(json) showing the module tool after from json import tool, but that module not in json.__all__ list. * import json* *dir(json)* ['JSONDecoder', 'JSONEncoder', '__all__', '__author__', '__builtins__', '__doc__', '__file__', '__name__', '__package__', '__path__', '__version__', '_default_decoder', '_default_encoder', 'decoder', 'dump', 'dumps', 'encoder', 'load', 'loads', 'scanner'] * json.__all__* ['dump', 'dumps', 'load', 'loads', 'JSONDecoder', 'JSONEncoder'] *from json import tool* dir(json) ['JSONDecoder', 'JSONEncoder', '__all__', '__author__', '__builtins__', '__doc__', '__file__', '__name__', '__package__', '__path__', '__version__', '_default_decoder', '_default_encoder', 'decoder', 'dump', 'dumps', 'encoder', 'load', 'loads', 'scanner', *'tool'*] *json.__all__* ['dump', 'dumps', 'load', 'loads', 'JSONDecoder', 'JSONEncoder'] Regards Saju Madhavan +91 09535134654 On Fri, Sep 13, 2013 at 8:25 AM, Noufal Ibrahim nou...@nibrahim.net.inwrote: Saager Mhatre saager.mha...@gmail.com writes: On Tue, Sep 10, 2013 at 4:54 PM, Noufal Ibrahim nou...@nibrahim.net.in wrote: Saju M sajup...@gmail.com writes: [...] * Why dir(json) not showing tool ?? Because of the __all__ variable in the module. http://docs.python.org/2/tutorial/modules.html Noufal, Well, not quite, right? I posit it's basically because as per python module-import semantics, sub-modules don't end up as names in the package-module[*] unless explicitly added, right? Yes. I think that's more accurate. Mea culpa. [...] -- Cordially, Noufal http://nibrahim.net.in ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
On Sep 9, 2013 8:51 PM, CsquaredinOmaha c2inom...@yahoo.com wrote: For a while I had thought it would be interesting to hear tips/techniques you find yourself often using - or perhaps found useful at one point (and thus would be valuable to newbies). It could be simple snippet, or some description of logic, technique or steps. From simple to sophisticated is less the issue - more that you found it handy and used it alot. Whatever use area: ETL data files, servers, SQL maintenance, webcrawlers, anything. == Writing tests as top-level functions as opposed to methods of a unittest.TestCase subclass == Aside from the obvious advantage of eliminating ceremony, this has the effect of forcing me to make sure that each test is entirely and atomically independent of other tests. That way, I only ever have to read one function to understand the nature of a given test failure. Also, not having the ability to easily slap on setup/teardown functions/methods forces me to make tests self-contained. Add in the heuristic that tests with long/complicated arrange and/or act sections are indicative of potential design flaws and you have the requisite TDD feedback. It also helps tremendously that both nosetest and pytest support this idiom. - d ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
On Sep 9, 2013 8:51 PM, CsquaredinOmaha c2inom...@yahoo.com wrote: For a while I had thought it would be interesting to hear tips/techniques you find yourself often using - or perhaps found useful at one point (and thus would be valuable to newbies). It could be simple snippet, or some description of logic, technique or steps. From simple to sophisticated is less the issue - more that you found it handy and used it alot. Whatever use area: ETL data files, servers, SQL maintenance, webcrawlers, anything. The 'returning' function = http://bit.ly/13VNdBJ - d ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
On Tue, Sep 10, 2013 at 10:39 AM, Shabda Raaj sha...@agiliq.com wrote: https://github.com/webpy/webpy/blob/master/web/utils.py#L52 Wow, thats better than the bare bunch impl. Gonna use it now. plug type=shamelessIt's just s much nicer when the map/dict in your platform http://groovy.codehaus.org/Collections#Collections-Mapsmaps just does that for you :)/plug - d ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
On Tue, Sep 10, 2013 at 4:54 PM, Noufal Ibrahim nou...@nibrahim.net.inwrote: Saju M sajup...@gmail.com writes: [...] * Why dir(json) not showing tool ?? Because of the __all__ variable in the module. http://docs.python.org/2/tutorial/modules.html Noufal, Well, not quite, right? I posit it's basically because as per python module-import semantics, sub-modules don't end up as names in the package-module[*] unless explicitly added, right? Saju, I sincerely hope your head didn't just explode! :P - d [*] for lack of a better word! ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Saager Mhatre saager.mha...@gmail.com writes: On Tue, Sep 10, 2013 at 4:54 PM, Noufal Ibrahim nou...@nibrahim.net.inwrote: Saju M sajup...@gmail.com writes: [...] * Why dir(json) not showing tool ?? Because of the __all__ variable in the module. http://docs.python.org/2/tutorial/modules.html Noufal, Well, not quite, right? I posit it's basically because as per python module-import semantics, sub-modules don't end up as names in the package-module[*] unless explicitly added, right? Yes. I think that's more accurate. Mea culpa. [...] -- Cordially, Noufal http://nibrahim.net.in ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Not so complex, but the technique which I love is the comprehension, it decreases the code size. On Fri, Sep 13, 2013 at 8:25 AM, Noufal Ibrahim nou...@nibrahim.net.inwrote: Saager Mhatre saager.mha...@gmail.com writes: On Tue, Sep 10, 2013 at 4:54 PM, Noufal Ibrahim nou...@nibrahim.net.in wrote: Saju M sajup...@gmail.com writes: [...] * Why dir(json) not showing tool ?? Because of the __all__ variable in the module. http://docs.python.org/2/tutorial/modules.html Noufal, Well, not quite, right? I posit it's basically because as per python module-import semantics, sub-modules don't end up as names in the package-module[*] unless explicitly added, right? Yes. I think that's more accurate. Mea culpa. [...] -- Cordially, Noufal http://nibrahim.net.in ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
I often type this x = Break this into a list.split() instead of x = [Break, this, into, a, list] The latter is more tedious to type. -- Cordially, Noufal http://nibrahim.net.in ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
This use case where one needs to keep related values together as logical
group:
Properties, getattr, setattr are quite interesting option but I prefer
collections.namedtuple
Example
EmployeeRecord = namedtuple('EmployeeRecord', 'name, age, title,
department, paygrade')
import csvfor emp in map(EmployeeRecord._make,
csv.reader(open(employees.csv, rb))):
print emp.name, emp.title
import sqlite3conn = sqlite3.connect('/companydata')cursor =
conn.cursor()cursor.execute('SELECT name, age, title, department,
paygrade FROM employees')for emp in map(EmployeeRecord._make,
cursor.fetchall()):
print emp.name, emp.title
My contribution to bag of tricks
On Tue, Sep 10, 2013 at 9:59 PM, Gopalakrishnan Subramani
gopalakrishnan.subram...@gmail.com wrote:
Attributes are stylish, readable, feel native as object compared to
dictionary. Sometimes I use setter methods to override the default
assignments, modify getter to format the values and getter for virtual
attributes for DSL stuffs.
class DictObj(dict):
def __getattr__(self, key):
if key.startswith(has_):
arr = key.split(_)
return arr[1] in self
return self[key]
def __setattr__(self, key, value):
self[key] = value
od = DictObj()
od.name = Nila
print (Has Name? , od.has_name)
print (Has Age? , od.has_age)
We have this sort of implementation for functional test verification. We
are into Industrial Automation, we deal with measurement devices like flow,
pressure, density, etc. Each device has got 100+ attributes like tag,
address, current value, calibration etc.
Injecting 'has' and 'is' helps test engineers write unit test based on
device property itself.
if (device.is_calibration_running): # here calibration_running is a value
read from the device or cached and is is applied for dynamic conditions.
...
Although it seems like magic, but certainly not a black magic, we have
control over there.
Python must have got similar stuff like dynamic function hooks, we could
done still better. But we are missing.
On Tue, Sep 10, 2013 at 8:48 PM, BibhasD m...@bibhas.in wrote:
I'm just curious. I faced a similar issue before while answering a
question about Django on StackOverflow. Django turns context variable
dictionaries into objects with attributes in template. So in one
question in SO someone posted this question. Had to answer that Django
doesn't really support distinguishing such keys. So when I saw the same
thing discussed, thought of throwing it out here. :)
On Tuesday 10 September 2013 08:42 PM, Dhananjay Nene wrote:
Ignoring classes for the moment, how likely do you think you would
have a dict like that :)
On a separate note if you are using primitive types, I cannot think of
any scenarios, where not coercing keys to be of the same type would be
considered inappropriate (except in case of reverse dicts)
On Tue, Sep 10, 2013 at 3:52 PM, Me@Bibhas m...@bibhas.in wrote:
What would happen for a dictionary like this?
d = {'1': 'foo', 1: 'bar'}
d
{'1': 'foo', 1: 'bar'}
On Tuesday 10 September 2013 10:00 AM, Noufal Ibrahim wrote:
Shabda Raaj sha...@agiliq.com writes:
http://code.activestate.com/recipes/52308-the-simple-but-handy-collector-of-a-bunch-of-named/
With api responses after you have parsed the json, you start doing
things
like:
api_response[attribute]
I would much prefer to do
api_response.attribute
I generally like to use attributes instead of keys. One additional
advantage is that I can, if necessary, later convert the attribute
into
a property that does more than just return a value.
[...]
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
--
Supreet Sethi
Ph UK: +447859172473
Ph IN: +919811143517
Ph Skype: d_j_i_n_n
Profile: http://www.google.com/profiles/supreet.sethi
Twt: http://twitter.com/djinn
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Another script I use often is repr. https://github.com/anandology/hacks/blob/master/repr It reads each line from stdin and prints it as python repr. Useful to see hidden/non-alphanumeric characters. $ echo -e a\bc c $ echo -e a\bc | repr a\x08c\n This is similar to od, but od prints fixed number of characters in each line and sometimes you want to see the lines without breaking. Couple of hours back, I noticed an issue with a row in a mysql dump, and here is how I used it to inspect at that row. $ head -28130 my-table.txt | tail -1 | repr 2006-05-25 00:19:12\t\t1900-01-01 00:00:00\t\tMetal1\t Anand ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
There are times when the project requires a large blob of data which needs to be loaded with the python code. A general practice is to use pickle and json object which is opened using file functions etc. I tend to convert this kind of data (depending on size) into python file using pprint and store it as code included using python standard coding convention. Saves hassle of packaging and caring about path convention. Of course it is not correct convention for all situations. On Wed, Sep 11, 2013 at 4:55 PM, Anand Chitipothu anandol...@gmail.comwrote: Another script I use often is repr. https://github.com/anandology/hacks/blob/master/repr It reads each line from stdin and prints it as python repr. Useful to see hidden/non-alphanumeric characters. $ echo -e a\bc c $ echo -e a\bc | repr a\x08c\n This is similar to od, but od prints fixed number of characters in each line and sometimes you want to see the lines without breaking. Couple of hours back, I noticed an issue with a row in a mysql dump, and here is how I used it to inspect at that row. $ head -28130 my-table.txt | tail -1 | repr 2006-05-25 00:19:12\t\t1900-01-01 00:00:00\t\tMetal1\t Anand ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers -- Supreet Sethi Ph UK: +447859172473 Ph IN: +919811143517 Ph Skype: d_j_i_n_n Profile: http://www.google.com/profiles/supreet.sethi Twt: http://twitter.com/djinn ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
1. I do like the accessing dict attributes as keys and specifically where they make more sense as structure by itselfI do use class ABC(object): a = '' def __init__(self, **kwargs): self.__dict__.update(**kwargs) 2. When creating a dictionary of constants create it dynamically and independently on an interpreter and then use pprint and use copy it in my code On Wed, Sep 11, 2013 at 5:37 PM, s|s supr.e.etse...@gmail.com wrote: There are times when the project requires a large blob of data which needs to be loaded with the python code. A general practice is to use pickle and json object which is opened using file functions etc. I tend to convert this kind of data (depending on size) into python file using pprint and store it as code included using python standard coding convention. Saves hassle of packaging and caring about path convention. Of course it is not correct convention for all situations. On Wed, Sep 11, 2013 at 4:55 PM, Anand Chitipothu anandol...@gmail.com wrote: Another script I use often is repr. https://github.com/anandology/hacks/blob/master/repr It reads each line from stdin and prints it as python repr. Useful to see hidden/non-alphanumeric characters. $ echo -e a\bc c $ echo -e a\bc | repr a\x08c\n This is similar to od, but od prints fixed number of characters in each line and sometimes you want to see the lines without breaking. Couple of hours back, I noticed an issue with a row in a mysql dump, and here is how I used it to inspect at that row. $ head -28130 my-table.txt | tail -1 | repr 2006-05-25 00:19:12\t\t1900-01-01 00:00:00\t\tMetal1\t Anand ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers -- Supreet Sethi Ph UK: +447859172473 Ph IN: +919811143517 Ph Skype: d_j_i_n_n Profile: http://www.google.com/profiles/supreet.sethi Twt: http://twitter.com/djinn ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers -- A-M-I-T S|S ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
On Tue, Sep 10, 2013 at 10:45 AM, Noufal Ibrahim nou...@nibrahim.net.inwrote: Anand Chitipothu anandol...@gmail.com writes: [...] I use it very often. Here is my random-password script. [...] I use mkpasswd(1) :) What ever you use, please use py-bcrypt or something similar before you store it in the database. Here is the site with easy usage of it - http://www.mindrot.org/projects/py-bcrypt/ Another on how to use it well and store password in db. http://dustwell.com/how-to-handle-passwords-bcrypt.html -- Vinayak -- Vinayak ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
My first random password (until it is replaced with SHA, MD5, bCrypt, whatever): str(random.random())[2:] '742557965797' On Tue, Sep 10, 2013 at 11:34 AM, Vinayak Hegde vinay...@gmail.com wrote: On Tue, Sep 10, 2013 at 10:45 AM, Noufal Ibrahim nou...@nibrahim.net.in wrote: Anand Chitipothu anandol...@gmail.com writes: [...] I use it very often. Here is my random-password script. [...] I use mkpasswd(1) :) What ever you use, please use py-bcrypt or something similar before you store it in the database. Here is the site with easy usage of it - http://www.mindrot.org/projects/py-bcrypt/ Another on how to use it well and store password in db. http://dustwell.com/how-to-handle-passwords-bcrypt.html -- Vinayak -- Vinayak ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Both Shabda and Nouful used the term prefer Is there a best practice ? http://stackoverflow.com/questions/4984647/accessing-dict-keys-like-an-attribute-in-python This guy asked for pitfalls and caveats - but no one seem to have addressed the question (There are several answers about How to do it better) -Mandar On Tue, Sep 10, 2013 at 10:00 AM, Noufal Ibrahim nou...@nibrahim.net.inwrote: Shabda Raaj sha...@agiliq.com writes: http://code.activestate.com/recipes/52308-the-simple-but-handy-collector-of-a-bunch-of-named/ With api responses after you have parsed the json, you start doing things like: api_response[attribute] I would much prefer to do api_response.attribute I generally like to use attributes instead of keys. One additional advantage is that I can, if necessary, later convert the attribute into a property that does more than just return a value. [...] -- Cordially, Noufal http://nibrahim.net.in ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
This thread is awesome. Keep them coming. :) I've also been using random string generator Shabda posted for a long time. Handy. On Tuesday 10 September 2013 12:48 PM, Lakshman Prasad wrote: My first random password (until it is replaced with SHA, MD5, bCrypt, whatever): str(random.random())[2:] '742557965797' On Tue, Sep 10, 2013 at 11:34 AM, Vinayak Hegde vinay...@gmail.com wrote: On Tue, Sep 10, 2013 at 10:45 AM, Noufal Ibrahim nou...@nibrahim.net.in wrote: Anand Chitipothu anandol...@gmail.com writes: [...] I use it very often. Here is my random-password script. [...] I use mkpasswd(1) :) What ever you use, please use py-bcrypt or something similar before you store it in the database. Here is the site with easy usage of it - http://www.mindrot.org/projects/py-bcrypt/ Another on how to use it well and store password in db. http://dustwell.com/how-to-handle-passwords-bcrypt.html -- Vinayak -- Vinayak ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Don't know if I can call it a snippet, But this command on terminal - $ python -m SimpleHTTPServer 8080 is really handy for sharing files(along with the use of `localtunnel` maybe) and testing HTML/CSS. On Tuesday 10 September 2013 12:48 PM, Lakshman Prasad wrote: My first random password (until it is replaced with SHA, MD5, bCrypt, whatever): str(random.random())[2:] '742557965797' On Tue, Sep 10, 2013 at 11:34 AM, Vinayak Hegde vinay...@gmail.com wrote: On Tue, Sep 10, 2013 at 10:45 AM, Noufal Ibrahim nou...@nibrahim.net.in wrote: Anand Chitipothu anandol...@gmail.com writes: [...] I use it very often. Here is my random-password script. [...] I use mkpasswd(1) :) What ever you use, please use py-bcrypt or something similar before you store it in the database. Here is the site with easy usage of it - http://www.mindrot.org/projects/py-bcrypt/ Another on how to use it well and store password in db. http://dustwell.com/how-to-handle-passwords-bcrypt.html -- Vinayak -- Vinayak ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Me@Bibhas m...@bibhas.in writes: Don't know if I can call it a snippet, But this command on terminal - $ python -m SimpleHTTPServer 8080 Similar but less well known. Command line ftp client (similar to ftp(1)) python -m ftplib ftp.gnu.org Command line mail client (similar to mail(1)) but needs a local MTA running python -m smtplib Command line IMAP client (similar mutt -f imap://...) python -m imaplib -d5 nou...@imap.gmail.com Command line POP client python -m poplib pop.gmail.com There are probably others too. [...] -- Cordially, Noufal http://nibrahim.net.in ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On Tuesday 10 September 2013 03:07 PM, Me@Bibhas wrote:
This thread is awesome. Keep them coming. :)
I've also been using random string generator Shabda posted for a
long time. Handy.
On Tuesday 10 September 2013 12:48 PM, Lakshman Prasad wrote:
My first random password (until it is replaced with SHA, MD5,
bCrypt, whatever):
str(random.random())[2:]
'742557965797'
Also,
import uuid uuid.uuid4().bytes.encode('base64')[:12]
'XH4yYJA7SxSd'
uuid1..3 are not cryptographically strong as they are linked to the
machine but uuid4 generates a random, cryptographically secure uuid.
Regards,
- --Anand
-
--
Software Architect/Consultant
anandpil...@letterboxes.org
Please note my updated email address anandpil...@letterboxes.org.
Kindly update your address books.
-BEGIN PGP SIGNATURE-
Version: GnuPG v1.4.11 (GNU/Linux)
Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/
iQEcBAEBAgAGBQJSLu1ZAAoJEMTxYeOp9eaoJcYIAMxqHSNKm1rD4oDj9Y5sSEGw
mPuIelLcJGjB/qx2i6+SMB6dMQbofFV3k3YPlkwibDvkcQABbDl2Uxxo5BIVWXHB
ntH6ecQXGGw+YKOEoeBTq0s/Sv9rAsUtudO1q9/ylnKYpDgfG9sNjCwmhY9uB9iM
63mjsAoHOaJlNi6aQiBX+ceKqO38F9N13o/z63IKETWmc7efEthKWTG1HVRAhzXX
ICUaAiBvHFj0s2cOyZXmkIWkjwMPlbLyFLu7pyFeUMx5hb5SVoZkbCJF/lu943OM
nXTxQWz0N/zT6VMZVPHTTl98vXOb9esXqJD8+CeivhhgYKagR2xaXHcxbEKvE84=
=T5RJ
-END PGP SIGNATURE-
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Tuesday 10 September 2013 03:28 PM, Noufal Ibrahim wrote: Me@Bibhas m...@bibhas.in writes: Don't know if I can call it a snippet, But this command on terminal - $ python -m SimpleHTTPServer 8080 Similar but less well known. Command line ftp client (similar to ftp(1)) python -m ftplib ftp.gnu.org Command line mail client (similar to mail(1)) but needs a local MTA running python -m smtplib Command line IMAP client (similar mutt -f imap://...) python -m imaplib -d5 nou...@imap.gmail.com Command line POP client python -m poplib pop.gmail.com There are probably others too. $ python -m webbrowser -t http://www.python.org [...] - -- Regards, - --Anand - -- Software Architect/Consultant anandpil...@letterboxes.org Please note my updated email address anandpil...@letterboxes.org. Kindly update your address books. -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJSLu8OAAoJEMTxYeOp9eaoLWgH/1EInQZDF8aqfDxiWzYICv+M 82UH8FHCOTZjtj9KLfKtguc4da95bopJZyTSA+24aHKMKfdk082drLULgp6AiUT4 FwSFESwmHhTmiLQwLSI22nFb/NLnl7XaGX33Png+zBhN3fZDSEt23YCOx00MXKTO Lkb2q8g2oFcB8CisGQ0gIDr/oPzskhe8DffHV8eo7+7T/EDBv6mHoiT1MmLOQqJu uD0NbHL9RNMsi3I70cvAnHFkjLo9cVqMWnDQlN1x9KnCQMdJJ5n2JsNRn1cdG12i A1jw0D93mDeA6GmV+5cAQ8ZhBnHkuyAlnJWBHDB18y/Nn8khw6d/weFkjldegNM= =+nso -END PGP SIGNATURE- ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Another tip: Its common to write decorators which clober the docstring and other meta data. If you use functools.wrap this metadata is preserved. http://docs.python.org/2/library/functools.html https://github.com/django/django/blob/master/django/contrib/auth/decorators.py#L19 On Tue, Sep 10, 2013 at 12:48 PM, Lakshman Prasad scorpion...@gmail.comwrote: My first random password (until it is replaced with SHA, MD5, bCrypt, whatever): str(random.random())[2:] '742557965797' On Tue, Sep 10, 2013 at 11:34 AM, Vinayak Hegde vinay...@gmail.comwrote: On Tue, Sep 10, 2013 at 10:45 AM, Noufal Ibrahim nou...@nibrahim.net.in wrote: Anand Chitipothu anandol...@gmail.com writes: [...] I use it very often. Here is my random-password script. [...] I use mkpasswd(1) :) What ever you use, please use py-bcrypt or something similar before you store it in the database. Here is the site with easy usage of it - http://www.mindrot.org/projects/py-bcrypt/ Another on how to use it well and store password in db. http://dustwell.com/how-to-handle-passwords-bcrypt.html -- Vinayak -- Vinayak ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers -- Thanks, Shabda Agiliq.com - Building Amazing Apps agiliq.com/blog/ | github.com/agiliq US: +13152854388 | IN: +919949997612 | Skype: shabda.raaj Our Android Apps https://play.google.com/store/apps/developer?id=Agiliq | Our iOS Apps https://itunes.apple.com/us/artist/agiliq/id407918088 ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Command line json formatter
$ echo '{name: Bangpypers, location: Bangalore}' | python -m
json.tool
On Tue, Sep 10, 2013 at 3:28 PM, Noufal Ibrahim nou...@nibrahim.net.inwrote:
Me@Bibhas m...@bibhas.in writes:
Don't know if I can call it a snippet, But this command on terminal -
$ python -m SimpleHTTPServer 8080
Similar but less well known.
Command line ftp client (similar to ftp(1))
python -m ftplib ftp.gnu.org
Command line mail client (similar to mail(1)) but needs a local MTA
running
python -m smtplib
Command line IMAP client (similar mutt -f imap://...)
python -m imaplib -d5 nou...@imap.gmail.com
Command line POP client
python -m poplib pop.gmail.com
There are probably others too.
[...]
--
Cordially,
Noufal
http://nibrahim.net.in
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
--
Vineet Naik
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Not all keys in the dictionary can be expressed as attributes. Attributes has to follow the naming conventions. I had problems with user generated 'keys', JSON supported keys. On Tue, Sep 10, 2013 at 2:41 PM, Mandar Vaze / मंदार वझे mandarv...@gmail.com wrote: Both Shabda and Nouful used the term prefer Is there a best practice ? http://stackoverflow.com/questions/4984647/accessing-dict-keys-like-an-attribute-in-python This guy asked for pitfalls and caveats - but no one seem to have addressed the question (There are several answers about How to do it better) -Mandar On Tue, Sep 10, 2013 at 10:00 AM, Noufal Ibrahim nou...@nibrahim.net.in wrote: Shabda Raaj sha...@agiliq.com writes: http://code.activestate.com/recipes/52308-the-simple-but-handy-collector-of-a-bunch-of-named/ With api responses after you have parsed the json, you start doing things like: api_response[attribute] I would much prefer to do api_response.attribute I generally like to use attributes instead of keys. One additional advantage is that I can, if necessary, later convert the attribute into a property that does more than just return a value. [...] -- Cordially, Noufal http://nibrahim.net.in ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
What would happen for a dictionary like this?
d = {'1': 'foo', 1: 'bar'}
d
{'1': 'foo', 1: 'bar'}
On Tuesday 10 September 2013 10:00 AM, Noufal Ibrahim wrote:
Shabda Raaj sha...@agiliq.com writes:
http://code.activestate.com/recipes/52308-the-simple-but-handy-collector-of-a-bunch-of-named/
With api responses after you have parsed the json, you start doing things
like:
api_response[attribute]
I would much prefer to do
api_response.attribute
I generally like to use attributes instead of keys. One additional
advantage is that I can, if necessary, later convert the attribute into
a property that does more than just return a value.
[...]
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Date: Tue, 10 Sep 2013 15:39:44 +0530
From: Vineet Naik naik...@gmail.com
To: Bangalore Python Users Group - India bangpypers@python.org
Message-ID:
CADmbCiP8Dq7BroEWovreG2AfB=
g1u3z80zgnt6cg3lenrsb...@mail.gmail.com
Content-Type: text/plain; charset=ISO-8859-1
Command line json formatter
$ echo '{name: Bangpypers, location: Bangalore}' | python -m
json.tool
Just to add, this works great in Vim too :)
Just use
:%!python -m json.tool
to get formatted JSON output
--
Navin Pai
http://lifeofnav.in
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
echo '{name: Bangpypers, location: Bangalore}' | python -m json.tool
In this command, what is this json.tool ?
I could not find tool in dir(json)
import json
dir(json)
['JSONDecoder', 'JSONEncoder', '__all__', '__author__', '__builtins__',
'__doc__', '__file__', '__name__', '__package__', '__path__',
'__version__', '_default_decoder', '_default_encoder', 'decoder', 'dump',
'dumps', 'encoder', 'load', 'loads', 'scanner']
Regards
Saju Madhavan
+91 09535134654
On Tue, Sep 10, 2013 at 3:39 PM, Vineet Naik naik...@gmail.com wrote:
Command line json formatter
$ echo '{name: Bangpypers, location: Bangalore}' | python -m
json.tool
On Tue, Sep 10, 2013 at 3:28 PM, Noufal Ibrahim nou...@nibrahim.net.in
wrote:
Me@Bibhas m...@bibhas.in writes:
Don't know if I can call it a snippet, But this command on terminal -
$ python -m SimpleHTTPServer 8080
Similar but less well known.
Command line ftp client (similar to ftp(1))
python -m ftplib ftp.gnu.org
Command line mail client (similar to mail(1)) but needs a local MTA
running
python -m smtplib
Command line IMAP client (similar mutt -f imap://...)
python -m imaplib -d5 nou...@imap.gmail.com
Command line POP client
python -m poplib pop.gmail.com
There are probably others too.
[...]
--
Cordially,
Noufal
http://nibrahim.net.in
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
--
Vineet Naik
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Saju M sajup...@gmail.com writes:
echo '{name: Bangpypers, location: Bangalore}' | python -m json.tool
In this command, what is this json.tool ?
I could not find tool in dir(json)
import json
dir(json)
['JSONDecoder', 'JSONEncoder', '__all__', '__author__', '__builtins__',
'__doc__', '__file__', '__name__', '__package__', '__path__',
'__version__', '_default_decoder', '_default_encoder', 'decoder', 'dump',
'dumps', 'encoder', 'load', 'loads', 'scanner']
It needn't be.
from json import tool
tool.__file__
'/usr/lib/python2.7/json/tool.pyc'
json is a package and tool is one of the modules inside that.
To get to this, I have a little shell function that I stole from Anand that has
been super useful repeatedly.
epy () {
cmd=import $1 as a ; print a.__file__.endswith('.pyc') and
a.__file__[:-1] or a.__file__
file=$(/usr/bin/env python -c $cmd)
echo $file
emacsclient --no-wait $file
}
If you want to read the source for the json module, just do
$ epy json
and the json module is loaded into Emacs.
[...]
--
Cordially,
Noufal
http://nibrahim.net.in
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
On Tue, Sep 10, 2013 at 4:16 PM, Saju M sajup...@gmail.com wrote:
echo '{name: Bangpypers, location: Bangalore}' | python -m
json.tool
In this command, what is this json.tool ?
I could not find tool in dir(json)
import json
dir(json)
['JSONDecoder', 'JSONEncoder', '__all__', '__author__', '__builtins__',
'__doc__', '__file__', '__name__', '__package__', '__path__',
'__version__', '_default_decoder', '_default_encoder', 'decoder', 'dump',
'dumps', 'encoder', 'load', 'loads', 'scanner']
It's a module by itself. Located at /usr/lib/python2.7/json/tool.py on my
machine
Regards
Saju Madhavan
+91 09535134654
On Tue, Sep 10, 2013 at 3:39 PM, Vineet Naik naik...@gmail.com wrote:
Command line json formatter
$ echo '{name: Bangpypers, location: Bangalore}' | python -m
json.tool
On Tue, Sep 10, 2013 at 3:28 PM, Noufal Ibrahim nou...@nibrahim.net.in
wrote:
Me@Bibhas m...@bibhas.in writes:
Don't know if I can call it a snippet, But this command on terminal -
$ python -m SimpleHTTPServer 8080
Similar but less well known.
Command line ftp client (similar to ftp(1))
python -m ftplib ftp.gnu.org
Command line mail client (similar to mail(1)) but needs a local MTA
running
python -m smtplib
Command line IMAP client (similar mutt -f imap://...)
python -m imaplib -d5 nou...@imap.gmail.com
Command line POP client
python -m poplib pop.gmail.com
There are probably others too.
[...]
--
Cordially,
Noufal
http://nibrahim.net.in
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
--
Vineet Naik
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
--
Vineet Naik
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
On Tuesday 10 September 2013 04:16 PM, Saju M wrote:
echo '{name: Bangpypers, location: Bangalore}' | python -m json.tool
In this command, what is this json.tool ?
I could not find tool in dir(json)
import json
dir(json)
['JSONDecoder', 'JSONEncoder', '__all__', '__author__', '__builtins__',
'__doc__', '__file__', '__name__', '__package__', '__path__',
'__version__', '_default_decoder', '_default_encoder', 'decoder', 'dump',
'dumps', 'encoder', 'load', 'loads', 'scanner']
import json.tool
print json.tool.__doc__
Command-line tool to validate and pretty-print JSON
Usage::
$ echo '{json:obj}' | python -m json.tool
{
json: obj
}
$ echo '{ 1.2:3.4}' | python -m json.tool
Expecting property name enclosed in double quotes: line 1 column 3 (char
2)
Regards
Saju Madhavan
+91 09535134654
On Tue, Sep 10, 2013 at 3:39 PM, Vineet Naik naik...@gmail.com wrote:
Command line json formatter
$ echo '{name: Bangpypers, location: Bangalore}' | python -m
json.tool
On Tue, Sep 10, 2013 at 3:28 PM, Noufal Ibrahim nou...@nibrahim.net.in
wrote:
Me@Bibhas m...@bibhas.in writes:
Don't know if I can call it a snippet, But this command on terminal -
$ python -m SimpleHTTPServer 8080
Similar but less well known.
Command line ftp client (similar to ftp(1))
python -m ftplib ftp.gnu.org
Command line mail client (similar to mail(1)) but needs a local MTA
running
python -m smtplib
Command line IMAP client (similar mutt -f imap://...)
python -m imaplib -d5 nou...@imap.gmail.com
Command line POP client
python -m poplib pop.gmail.com
There are probably others too.
[...]
--
Cordially,
Noufal
http://nibrahim.net.in
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
--
Vineet Naik
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Vineet Naik naik...@gmail.com writes: [...] If you are using jedi[1] with auto-complete in emacs, C-. takes you to the definition by opening the module file in a write protected buffer. I use jedi mainly for this feature and inline documentation popout rather than for autocomplete :-) [...] I'll check it out. Thanks! -- Cordially, Noufal http://nibrahim.net.in ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Hi,
I have couple of doubts
* How do you find json has module named tool ?.
* Why dir(json) not showing tool ??
import json
dir(json)
['JSONDecoder', 'JSONEncoder', '__all__', '__author__', '__builtins__',
'__doc__', '__file__', '__name__', '__package__', '__path__',
'__version__', '_default_decoder', '_default_encoder', 'decoder', 'dump',
'dumps', 'encoder', 'load', 'loads', 'scanner']
* How to list all modules of a package in python console ?.
* Is this what you guys are using to check modules of a package ?.
ls /usr/lib/python2.7/json/ | grep .py$
decoder.py
encoder.py
__init__.py
scanner.py
tool.py
Regards
Saju Madhavan
+91 09535134654
On Tue, Sep 10, 2013 at 4:21 PM, Noufal Ibrahim nou...@nibrahim.net.inwrote:
Saju M sajup...@gmail.com writes:
echo '{name: Bangpypers, location: Bangalore}' | python -m
json.tool
In this command, what is this json.tool ?
I could not find tool in dir(json)
import json
dir(json)
['JSONDecoder', 'JSONEncoder', '__all__', '__author__', '__builtins__',
'__doc__', '__file__', '__name__', '__package__', '__path__',
'__version__', '_default_decoder', '_default_encoder', 'decoder', 'dump',
'dumps', 'encoder', 'load', 'loads', 'scanner']
It needn't be.
from json import tool
tool.__file__
'/usr/lib/python2.7/json/tool.pyc'
json is a package and tool is one of the modules inside that.
To get to this, I have a little shell function that I stole from Anand
that has
been super useful repeatedly.
epy () {
cmd=import $1 as a ; print a.__file__.endswith('.pyc') and
a.__file__[:-1] or a.__file__
file=$(/usr/bin/env python -c $cmd)
echo $file
emacsclient --no-wait $file
}
If you want to read the source for the json module, just do
$ epy json
and the json module is loaded into Emacs.
[...]
--
Cordially,
Noufal
http://nibrahim.net.in
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Saju M sajup...@gmail.com writes: Hi, I have couple of doubts * How do you find json has module named tool ?. I look at the code/docs. * Why dir(json) not showing tool ?? Because of the __all__ variable in the module. http://docs.python.org/2/tutorial/modules.html import json dir(json) ['JSONDecoder', 'JSONEncoder', '__all__', '__author__', '__builtins__', '__doc__', '__file__', '__name__', '__package__', '__path__', '__version__', '_default_decoder', '_default_encoder', 'decoder', 'dump', 'dumps', 'encoder', 'load', 'loads', 'scanner'] * How to list all modules of a package in python console ?. I don't think that's possible. If you import a package, only what the __init__.py in the package decides to show you is available directly. * Is this what you guys are using to check modules of a package ?. Sort of. [...] -- Cordially, Noufal http://nibrahim.net.in ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
On Tue, Sep 10, 2013 at 4:48 PM, Saju M sajup...@gmail.com wrote:
Hi,
I have couple of doubts
* How do you find json has module named tool ?.
* Why dir(json) not showing tool ??
import json
dir(json)
['JSONDecoder', 'JSONEncoder', '__all__', '__author__', '__builtins__',
'__doc__', '__file__', '__name__', '__package__', '__path__',
'__version__', '_default_decoder', '_default_encoder', 'decoder', 'dump',
'dumps', 'encoder', 'load', 'loads', 'scanner']
* How to list all modules of a package in python console ?.
* Is this what you guys are using to check modules of a package ?.
ls /usr/lib/python2.7/json/ | grep .py$
decoder.py
encoder.py
__init__.py
scanner.py
tool.py
Don't know how to get all modules of a package as a list but if you just
need to refer to the package contents, then pydoc gives this info. eg. run,
$ pydoc json
and then search for the section titled PACKAGE CONTENTS and you can find
tool listed there along with the other modules in the package.
Regards
Saju Madhavan
+91 09535134654
On Tue, Sep 10, 2013 at 4:21 PM, Noufal Ibrahim nou...@nibrahim.net.in
wrote:
Saju M sajup...@gmail.com writes:
echo '{name: Bangpypers, location: Bangalore}' | python -m
json.tool
In this command, what is this json.tool ?
I could not find tool in dir(json)
import json
dir(json)
['JSONDecoder', 'JSONEncoder', '__all__', '__author__', '__builtins__',
'__doc__', '__file__', '__name__', '__package__', '__path__',
'__version__', '_default_decoder', '_default_encoder', 'decoder',
'dump',
'dumps', 'encoder', 'load', 'loads', 'scanner']
It needn't be.
from json import tool
tool.__file__
'/usr/lib/python2.7/json/tool.pyc'
json is a package and tool is one of the modules inside that.
To get to this, I have a little shell function that I stole from Anand
that has
been super useful repeatedly.
epy () {
cmd=import $1 as a ; print a.__file__.endswith('.pyc') and
a.__file__[:-1] or a.__file__
file=$(/usr/bin/env python -c $cmd)
echo $file
emacsclient --no-wait $file
}
If you want to read the source for the json module, just do
$ epy json
and the json module is loaded into Emacs.
[...]
--
Cordially,
Noufal
http://nibrahim.net.in
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
--
Vineet Naik
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Another utility script that I use very heavily, pyvi. https://github.com/anandology/hacks/blob/master/pyvi $ pyvi json.tool That opens json.tool module (or any other module) in vim. It also changes the current dir to that module directory so that you can easily open other modules in the same package very easily. You can press :e tab to see all available modules. :e decotab will expand it to :e decoder.py and so on. I find this very hard for reading code when documentation is not enough. Noufal has an emacs port of this script. Anand ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
I personally like to use IPython.
To see all variables, constants, modules.
n [9]: import requests
In [10]: requests.
requests.ConnectionError requests.api requests.models
requests.HTTPError requests.auth requests.options
requests.NullHandler requests.certs requests.packages
requests.PreparedRequest requests.codes requests.patch
requests.Request requests.compatrequests.post
requests.RequestException requests.cookies requests.put
requests.Response requests.deleterequests.request
requests.Session requests.exceptionsrequests.session
requests.Timeout requests.get requests.sessions
requests.TooManyRedirects requests.head requests.status_codes
requests.URLRequired requests.hooks requests.structures
requests.adapters requests.logging requests.utils
Now to read about `Session`
In [10]: requests.Session?
Type: type
String Form:class 'requests.sessions.Session'
File: /Library/Python/2.7/site-packages/requests/sessions.py
Docstring:
A Requests session.
Provides cookie persistience, connection-pooling, and configuration.
Basic Usage::
import requests
s = requests.Session()
s.get('http://httpbin.org/get')
200
Constructor information:
Definition:requests.Session(self)
Now to open the file.
In [12]: !/Applications/Sublime\ Text\
2.app/Contents/SharedSupport/bin/subl
/Library/Python/2.7/site-packages/requests/sessions.py
Note: IPython can't open alias so I dint use subl
How to read source code inside IPython ?
In [13]: requests.Session??
Type: type
String Form:class 'requests.sessions.Session'
File: /Library/Python/2.7/site-packages/requests/sessions.py
Source:
class Session(SessionRedirectMixin):
A Requests session.
Provides cookie persistience, connection-pooling, and configuration.
Basic Usage::
import requests
s = requests.Session()
s.get('http://httpbin.org/get')
200
On Tue, Sep 10, 2013 at 5:19 PM, Anand Chitipothu anandol...@gmail.comwrote:
Another utility script that I use very heavily, pyvi.
https://github.com/anandology/hacks/blob/master/pyvi
$ pyvi json.tool
That opens json.tool module (or any other module) in vim. It also changes
the current dir to that module directory so that you can easily open other
modules in the same package very easily.
You can press :e tab to see all available modules. :e decotab will
expand it to :e decoder.py and so on.
I find this very hard for reading code when documentation is not enough.
Noufal has an emacs port of this script.
Anand
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
--
*
Thanks Regards
Talk is cheap, show me the code -- Linus Torvalds
kracekumar
www.kracekumar.com
*
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
This thread is awesome. Keep them coming. :) Prettyprint comes very handy when it comes to object debugging. Use it in my logger method always ;) http://docs.python.org/2/library/pprint.html ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Obligatory comic: https://xkcd.com/936/ On 10 September 2013 10:42, Anand Chitipothu anandol...@gmail.com wrote: On Tue, Sep 10, 2013 at 10:39 AM, Shabda Raaj sha...@agiliq.com wrote: https://github.com/webpy/webpy/blob/master/web/utils.py#L52 Wow, thats better than the bare bunch impl. Gonna use it now. Unrelated tip: Here is a one liner I use to generate passwords and other random strings. ''.join(random.choice(string.ascii_uppercase + string.digits) for x in range(N)) I use it very often. Here is my random-password script. $ cat ~/bin/random-password #! /usr/bin/env python import random import sys import string try: n = int(sys.argv[1]) except IndexError: n = 20 print(.join(random.choice(string.ascii_letters) for i in range(n))) Anand ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
I personally like to use IPython. To see all variables, constants, modules. Ipython is amazing. To see a library code, I jsut tab-out lib_name.__file__ and then !vim paste_the_file_path Going to add something like anand's pyvi to ipy_user_conf.py. Ipython with treat anything after bang(!) as a shell command to never felt the need till now. Related: You can get a ipython shell within your django runserver's from IPython.Shell import IPShellEmbed ipython = IPShellEmbed() http://agiliq.com/blog/2009/12/using-bpython-shell-with-django-and-some-ipython-f/ I also like to debug with ipdb (rather than the pdb). Add this to your Django views. import ipdb; ipdb.set_trace() and debug away. ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Bibhas, Glad you are pleased. I started the thread in consideration of your comment that list had not enough interesting being posted. Again, it is ok to start threads yourself (so keep something to throw out there maybe when current flurry slows down and the list needs some fresh discussion). Regards, Chris From: Me@Bibhas m...@bibhas.in To: Bangalore Python Users Group - India bangpypers@python.org Sent: Tuesday, September 10, 2013 4:37 AM Subject: Re: [BangPypers] Favorite tips/techniques This thread is awesome. Keep them coming. :) I've also been using random string generator Shabda posted for a long time. Handy. On Tuesday 10 September 2013 12:48 PM, Lakshman Prasad wrote: My first random password (until it is replaced with SHA, MD5, bCrypt, whatever): str(random.random())[2:] '742557965797' On Tue, Sep 10, 2013 at 11:34 AM, Vinayak Hegde vinay...@gmail.com wrote: On Tue, Sep 10, 2013 at 10:45 AM, Noufal Ibrahim nou...@nibrahim.net.in wrote: Anand Chitipothu anandol...@gmail.com writes: [...] I use it very often. Here is my random-password script. [...] I use mkpasswd(1) :) What ever you use, please use py-bcrypt or something similar before you store it in the database. Here is the site with easy usage of it - http://www.mindrot.org/projects/py-bcrypt/ Another on how to use it well and store password in db. http://dustwell.com/how-to-handle-passwords-bcrypt.html -- Vinayak -- Vinayak ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Ignoring classes for the moment, how likely do you think you would
have a dict like that :)
On a separate note if you are using primitive types, I cannot think of
any scenarios, where not coercing keys to be of the same type would be
considered inappropriate (except in case of reverse dicts)
On Tue, Sep 10, 2013 at 3:52 PM, Me@Bibhas m...@bibhas.in wrote:
What would happen for a dictionary like this?
d = {'1': 'foo', 1: 'bar'}
d
{'1': 'foo', 1: 'bar'}
On Tuesday 10 September 2013 10:00 AM, Noufal Ibrahim wrote:
Shabda Raaj sha...@agiliq.com writes:
http://code.activestate.com/recipes/52308-the-simple-but-handy-collector-of-a-bunch-of-named/
With api responses after you have parsed the json, you start doing things
like:
api_response[attribute]
I would much prefer to do
api_response.attribute
I generally like to use attributes instead of keys. One additional
advantage is that I can, if necessary, later convert the attribute into
a property that does more than just return a value.
[...]
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
--
--
http://blog.dhananjaynene.com twitter: @dnene google plus:
http://gplus.to/dhananjaynene
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
I'm just curious. I faced a similar issue before while answering a
question about Django on StackOverflow. Django turns context variable
dictionaries into objects with attributes in template. So in one
question in SO someone posted this question. Had to answer that Django
doesn't really support distinguishing such keys. So when I saw the same
thing discussed, thought of throwing it out here. :)
On Tuesday 10 September 2013 08:42 PM, Dhananjay Nene wrote:
Ignoring classes for the moment, how likely do you think you would
have a dict like that :)
On a separate note if you are using primitive types, I cannot think of
any scenarios, where not coercing keys to be of the same type would be
considered inappropriate (except in case of reverse dicts)
On Tue, Sep 10, 2013 at 3:52 PM, Me@Bibhas m...@bibhas.in wrote:
What would happen for a dictionary like this?
d = {'1': 'foo', 1: 'bar'}
d
{'1': 'foo', 1: 'bar'}
On Tuesday 10 September 2013 10:00 AM, Noufal Ibrahim wrote:
Shabda Raaj sha...@agiliq.com writes:
http://code.activestate.com/recipes/52308-the-simple-but-handy-collector-of-a-bunch-of-named/
With api responses after you have parsed the json, you start doing things
like:
api_response[attribute]
I would much prefer to do
api_response.attribute
I generally like to use attributes instead of keys. One additional
advantage is that I can, if necessary, later convert the attribute into
a property that does more than just return a value.
[...]
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Attributes are stylish, readable, feel native as object compared to
dictionary. Sometimes I use setter methods to override the default
assignments, modify getter to format the values and getter for virtual
attributes for DSL stuffs.
class DictObj(dict):
def __getattr__(self, key):
if key.startswith(has_):
arr = key.split(_)
return arr[1] in self
return self[key]
def __setattr__(self, key, value):
self[key] = value
od = DictObj()
od.name = Nila
print (Has Name? , od.has_name)
print (Has Age? , od.has_age)
We have this sort of implementation for functional test verification. We
are into Industrial Automation, we deal with measurement devices like flow,
pressure, density, etc. Each device has got 100+ attributes like tag,
address, current value, calibration etc.
Injecting 'has' and 'is' helps test engineers write unit test based on
device property itself.
if (device.is_calibration_running): # here calibration_running is a value
read from the device or cached and is is applied for dynamic conditions.
...
Although it seems like magic, but certainly not a black magic, we have
control over there.
Python must have got similar stuff like dynamic function hooks, we could
done still better. But we are missing.
On Tue, Sep 10, 2013 at 8:48 PM, BibhasD m...@bibhas.in wrote:
I'm just curious. I faced a similar issue before while answering a
question about Django on StackOverflow. Django turns context variable
dictionaries into objects with attributes in template. So in one
question in SO someone posted this question. Had to answer that Django
doesn't really support distinguishing such keys. So when I saw the same
thing discussed, thought of throwing it out here. :)
On Tuesday 10 September 2013 08:42 PM, Dhananjay Nene wrote:
Ignoring classes for the moment, how likely do you think you would
have a dict like that :)
On a separate note if you are using primitive types, I cannot think of
any scenarios, where not coercing keys to be of the same type would be
considered inappropriate (except in case of reverse dicts)
On Tue, Sep 10, 2013 at 3:52 PM, Me@Bibhas m...@bibhas.in wrote:
What would happen for a dictionary like this?
d = {'1': 'foo', 1: 'bar'}
d
{'1': 'foo', 1: 'bar'}
On Tuesday 10 September 2013 10:00 AM, Noufal Ibrahim wrote:
Shabda Raaj sha...@agiliq.com writes:
http://code.activestate.com/recipes/52308-the-simple-but-handy-collector-of-a-bunch-of-named/
With api responses after you have parsed the json, you start doing
things
like:
api_response[attribute]
I would much prefer to do
api_response.attribute
I generally like to use attributes instead of keys. One additional
advantage is that I can, if necessary, later convert the attribute into
a property that does more than just return a value.
[...]
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
___
BangPypers mailing list
BangPypers@python.org
https://mail.python.org/mailman/listinfo/bangpypers
[BangPypers] Favorite tips/techniques
For a while I had thought it would be interesting to hear tips/techniques you find yourself often using - or perhaps found useful at one point (and thus would be valuable to newbies). It could be simple snippet, or some description of logic, technique or steps. From simple to sophisticated is less the issue - more that you found it handy and used it alot. Whatever use area: ETL data files, servers, SQL maintenance, webcrawlers, anything. #--here is a snippet to open Windows File Explorer to select a file #--file explorer to select,open, and then parse network IP logfile from Tkinter import * import tkFileDialog logfilename = tkFileDialog.askopenfilename() #print logfilename logfile = open(logfilename, r) ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
[BangPypers] Favorite tips/techniques
http://code.activestate.com/recipes/52308-the-simple-but-handy-collector-of-a-bunch-of-named/ With api responses after you have parsed the json, you start doing things like: api_response[attribute] I would much prefer to do api_response.attribute Which the bunch pattern can enable. I don't use it as frequently as I would like, as code is read much more frequently than it is written, and not everyone would be aware of the bunch pattern. -- Thanks, Shabda Agiliq.com - Building Amazing Apps agiliq.com/blog/ | github.com/agiliq US: +13152854388 | IN: +919949997612 | Skype: shabda.raaj Our Android Apps https://play.google.com/store/apps/developer?id=Agiliq | Our iOS Apps https://itunes.apple.com/us/artist/agiliq/id407918088 ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Shabda Raaj sha...@agiliq.com writes: http://code.activestate.com/recipes/52308-the-simple-but-handy-collector-of-a-bunch-of-named/ With api responses after you have parsed the json, you start doing things like: api_response[attribute] I would much prefer to do api_response.attribute I generally like to use attributes instead of keys. One additional advantage is that I can, if necessary, later convert the attribute into a property that does more than just return a value. [...] -- Cordially, Noufal http://nibrahim.net.in ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
[BangPypers] Favorite tips/techniques
I generally like to use attributes instead of keys. If you are parsing json, aren't you limited to using keys? The bunch pattern can fix this, but its not widely known/used, so I don't use it as frequently as I would like. -- Thanks, Shabda Agiliq.com - Building Amazing Apps agiliq.com/blog/ | github.com/agiliq US: +13152854388 | IN: +919949997612 | Skype: shabda.raaj Our Android Apps https://play.google.com/store/apps/developer?id=Agiliq | Our iOS Apps https://itunes.apple.com/us/artist/agiliq/id407918088 ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Shabda Raaj sha...@agiliq.com writes: I generally like to use attributes instead of keys. If you are parsing json, aren't you limited to using keys? Of course. I was making a general statement about attributes vs. keys. The bunch pattern can fix this, but its not widely known/used, so I don't use it as frequently as I would like. Yes. It's quite neat. -- Cordially, Noufal http://nibrahim.net.in ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
On Tue, Sep 10, 2013 at 10:09 AM, Noufal Ibrahim nou...@nibrahim.net.inwrote: Shabda Raaj sha...@agiliq.com writes: I generally like to use attributes instead of keys. If you are parsing json, aren't you limited to using keys? Of course. I was making a general statement about attributes vs. keys. The bunch pattern can fix this, but its not widely known/used, so I don't use it as frequently as I would like. Yes. It's quite neat. web.py has something similar, but it works both like a dict and object at the same time. More like a javascript object. https://github.com/webpy/webpy/blob/master/web/utils.py#L52 Couple of issues with the Bunch pattern: * it is hard to check for existence of a key * hard to iterate over the keys * how do you convert a bunch object into JSON? Anand ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
https://github.com/webpy/webpy/blob/master/web/utils.py#L52 Wow, thats better than the bare bunch impl. Gonna use it now. Unrelated tip: Here is a one liner I use to generate passwords and other random strings. ''.join(random.choice(string.ascii_uppercase + string.digits) for x in range(N)) On Tue, Sep 10, 2013 at 10:18 AM, Anand Chitipothu anandol...@gmail.comwrote: On Tue, Sep 10, 2013 at 10:09 AM, Noufal Ibrahim nou...@nibrahim.net.inwrote: Shabda Raaj sha...@agiliq.com writes: I generally like to use attributes instead of keys. If you are parsing json, aren't you limited to using keys? Of course. I was making a general statement about attributes vs. keys. The bunch pattern can fix this, but its not widely known/used, so I don't use it as frequently as I would like. Yes. It's quite neat. web.py has something similar, but it works both like a dict and object at the same time. More like a javascript object. https://github.com/webpy/webpy/blob/master/web/utils.py#L52 Couple of issues with the Bunch pattern: * it is hard to check for existence of a key * hard to iterate over the keys * how do you convert a bunch object into JSON? Anand -- Thanks, Shabda Agiliq.com - Building Amazing Apps agiliq.com/blog/ | github.com/agiliq US: +13152854388 | IN: +919949997612 | Skype: shabda.raaj Our Android Apps https://play.google.com/store/apps/developer?id=Agiliq | Our iOS Apps https://itunes.apple.com/us/artist/agiliq/id407918088 ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
On Tue, Sep 10, 2013 at 10:39 AM, Shabda Raaj sha...@agiliq.com wrote: https://github.com/webpy/webpy/blob/master/web/utils.py#L52 Wow, thats better than the bare bunch impl. Gonna use it now. Unrelated tip: Here is a one liner I use to generate passwords and other random strings. ''.join(random.choice(string.ascii_uppercase + string.digits) for x in range(N)) I use it very often. Here is my random-password script. $ cat ~/bin/random-password #! /usr/bin/env python import random import sys import string try: n = int(sys.argv[1]) except IndexError: n = 20 print(.join(random.choice(string.ascii_letters) for i in range(n))) Anand ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Anand Chitipothu anandol...@gmail.com writes: [...] I use it very often. Here is my random-password script. [...] I use mkpasswd(1) :) -- Cordially, Noufal http://nibrahim.net.in ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
On Tue, Sep 10, 2013 at 10:45 AM, Noufal Ibrahim nou...@nibrahim.net.inwrote: Anand Chitipothu anandol...@gmail.com writes: [...] I use it very often. Here is my random-password script. [...] I use mkpasswd(1) :) $ sudo apt-cache search mkpasswd libstring-mkpasswd-perl - Perl module implementing a random password generator Oh, no! Anand ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Real programmers pipe /dev/urandom :) Let me preempt the xkcd: http://xkcd.com/378/ On Tue, Sep 10, 2013 at 10:47 AM, Anand Chitipothu anandol...@gmail.comwrote: On Tue, Sep 10, 2013 at 10:45 AM, Noufal Ibrahim nou...@nibrahim.net.inwrote: Anand Chitipothu anandol...@gmail.com writes: [...] I use it very often. Here is my random-password script. [...] I use mkpasswd(1) :) $ sudo apt-cache search mkpasswd libstring-mkpasswd-perl - Perl module implementing a random password generator Oh, no! Anand -- Thanks, Shabda Agiliq.com - Building Amazing Apps agiliq.com/blog/ | github.com/agiliq US: +13152854388 | IN: +919949997612 | Skype: shabda.raaj Our Android Apps https://play.google.com/store/apps/developer?id=Agiliq | Our iOS Apps https://itunes.apple.com/us/artist/agiliq/id407918088 ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] Favorite tips/techniques
Anand Chitipothu anandol...@gmail.com writes: [...] $ sudo apt-cache search mkpasswd libstring-mkpasswd-perl - Perl module implementing a random password generator I think that's something else. noufal@sanitarium% dpkg -S =mkpasswd whois: /usr/bin/mkpasswd noufal@sanitarium% file =mkpasswd /usr/bin/mkpasswd: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.26, BuildID[sha1]=0x2427549126fc6c2dda9f8420a090fc65a1c16130, stripped noufal@sanitarium% whatis mkpasswd mkpasswd (1) - Overfeatured front end to crypt(3) -- Cordially, Noufal http://nibrahim.net.in ___ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
