Re: problem with sorting
On Mar 28, 5:38 am, [EMAIL PROTECTED] wrote:
dict = {'M':3, 'R':0, 'S':2}
print dict
{'S': 2, 'R': 0, 'M': 3}
now if I wanted sorted values in list, i am not able to do this print
dict.values().sort()
None
it returns None instead of [0, 2, 3]
The sort method works by sorting 'in place'. That means it doesn't
return the sorted value, but just sorts the sequence.
t = {'M':3, 'R':0, 'S':2}
x = t.values()
x.sort()
x
[0, 2, 3]
or you can use sorted(), which does return the sorted sequence:
sorted(t.values())
[0, 2, 3]
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Re: Looking for a good Python environment
On Nov 7, 12:42 pm, Colin J. Williams [EMAIL PROTECTED] wrote: jwelby wrote: ... I currently use Python Scripter as a lightweight editor for Windows. Could you elaborate on lightweight please? I find PyScripter to be a powerful editor/debugger combination. What functionality does Eclipse have that PyScripter does not? Colin W. This is a fair question. I didn't phrase my post too well. I find PyScripter does pretty much everything I need in terms of doing actual development for Python. My use of 'lightweight' is by no means a criticism of PyScripter - it's more of a compliment, as it refers to the relatively modest demands that it makes on my system compared with Eclipse, which can be hog. The main reason I have used Eclipse for larger, team based, projects is for the source control plug-ins. Eclipse has plug-in support for cvs and svn. PyScripter may have this too - perhaps I've missed it. (I'm away from my Windows box at the moment, otherwise I would check). Of course, there are other ways to implement source control without it needing to be integrated in the IDE, so even this need not put off anyone who wants to use PyScripter with source control. Summary - unless you need the added flexibility offered by Eclipse plug-ins, PyScripter is a great tool for developing with Python on Windows. For project work I use Eclipse, which can be installed with PyDev and other useful plug-ins already included if you choose a suitable distribution of Easy Eclipse (http://www.easyeclipse.org/). There is a distribution specifically for Python development, and also one for LAMP, which includes a number of other components which will be of use if you are developing for the web. -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a good Python environment
On Nov 6, 10:56 pm, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Hey, I'm looking for a good Python environment. That is, at least an editor and a debugger, and it should run on Windows. Does anyone have any idea? I currently use Python Scripter as a lightweight editor for Windows. For project work I use Eclipse, which can be installed with PyDev and other useful plug-ins already included if you choose a suitable distribution of Easy Eclipse (http://www.easyeclipse.org/). There is a distribution specifically for Python development, and also one for LAMP, which includes a number of other components which will be of use if you are developing for the web. -- http://mail.python.org/mailman/listinfo/python-list
Re: python on window
On Mar 23, 7:25 am, sandeep patil [EMAIL PROTECTED] wrote:
i have install python on window xp os.
C:/program files/python
i have done print program it working but .py can't working
help me to how i will execute this file this file where i will save
it.
path execution how .
tell me about any envorment veriable in python to set before python
editor run,it path. etc
print ' sandeep patil'
sandeep patil
print ' sandeep bhagwan patil ,msc. java j2ee developer
SyntaxError: EOL while scanning single-quoted string print ' sandeep
bhagwan patil ,msc. java j2ee developer'
sandeep bhagwan patil ,msc. java j2ee developer
import posix
Traceback (most recent call last):
File pyshell#4, line 1, in module
import posix
ImportError: No module named posix
phonebook = {'sandeep':9325,'amit':9822,'anand':9890}
phonebook = {'titu':9423,'dadu':9422,'giri':9326}
inverted_phonebook=invert(phonebook)
Traceback (most recent call last):
File pyshell#7, line 1, in module
inverted_phonebook=invert(phonebook)
NameError: name 'invert' is not defined def invert(table):
index={}
for key in table.key():
value=table[key]
if not index.has_key(value):
index[value]=[]
index[value].append(key)
return index
Hi Sandeep.
As you are working with Python on Windows, I would suggest that you
install the Python for Windows extensions from here:
http://sourceforge.net/project/showfiles.php?group_id=78018
It includes a very good application called PythonWin. Once installed,
PythonWin will be available under Python in your Start menu.
If you run PythonWin, File/New gives you the option to create a new
Python script. To begin with, you can save into the Lib folder of your
Python installation (probably C:\Python25\Lib). I usually add my
initials at the front of the script name to differentiate my scripts
from the standard ones if I put stuff in Lib.
You should be able edit your PYTHONPATH variable in PythonWin - see
the Tools options (though, now I look, my installation actually has a
bug in this function), or alternatively, you can add a folder to your
PYTHONPATH environment variable in RegEdit (if you know what you're
doing).
I hope this helps.
J.
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Re: python on window
That should have been: You should be able edit your PYTHONPATH variable (should you need to)... Gabiel is right, it's not usually required. -- http://mail.python.org/mailman/listinfo/python-list
Re: returning index of minimum in a list of lists
def minIndexFinder(seq): mins = [] listIndex = 0 result = [] for item in seq: mins.append([listIndex,min(item),item.index(min(item))]) listIndex += 1 lowest = min([x[1] for x in mins]) for item in mins: if item[1] == lowest: result.append([item[0], item[2]]) return result A bit more verbose, but maybe slightly more readable?? I probably should have used enumerate like Paul did. For the index of the *first* (or only) occurence of the minimum value in a list of numbers you can just use: seq.index(min(seq)) -- http://mail.python.org/mailman/listinfo/python-list
Re: Need help removing list elements.
This looks like a job for list comprehensions:
returned_lines= ['Name: John, Value: 12','We don't want this one.','Name:
Eric, Value: 24']
[x for x in returned_lines if ('Name' in x and 'Value' in x)]
['Name: John, Value: 12', 'Name: Eric, Value: 24']
List comprehensions are great. If you are not familiar with them, check
out the Python documentation. Once you get started with them, you won't
look back.
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Re: Need help removing list elements.
Ooops! Looking at your example a bit closer, change the 'and' in the list comprehension I posted to 'or', and it should do what you want. -- http://mail.python.org/mailman/listinfo/python-list
