Re: [Tutor] Script won't run for no apparent reason
On Fri, Aug 10, 2012 at 6:10 PM, Martin A. Brown wrote:
>
> : values = {'a':'d', 'b':'e', 'c':'f', 'd':'g', 'e':'h', 'f':'i', 'g':'j',
> : 'h':'k', 'i':'l', 'j':'m', 'k':'n', 'l':'o', 'm':'p', 'n':'q', 'o':'r',
> : 'p':'s', 'q':'t', 'r':'u', 's':'v', 't':'w', 'u':'x', 'v':'y', 'w':'z',
> : 'x':'a', 'y':'b', 'z':'c', 'A':'D', 'B':'E', 'C':'F', 'D':'G', 'E':'H',
> : 'F':'I', 'G':'J', 'H':'K', 'I':'L', 'J':'M', 'K':'N', 'L':'O', 'M':'P',
> : 'N':'Q', 'O':'R', 'P':'S', 'Q':'T', 'R':'U', 'S':'V', 'T':'W', 'U':'X',
> : 'V':'Y', 'W':'Z', 'X':'A', 'Y':'B', 'Z':'C'}
>
> This sort of thing always catches my eye, and I think to myself
> 'Are there any tools or libraries in this language that I could use
> to generate this, instead of writing out this repetitive data
> structure?'
>
> Here's what I did for my own amusement and possibly of benefit to
> you. There are probably better solutions out there for your Caesar
> cipher enjoyment, but I hope you may find this helpful.
>
> # -- This code should create a dictionary that should look like the
> #one above, but you can create it on the fly with a different
> #value for the shift. You could also use a different alphabet.
> #
> def generate_caesar_cipher(alphabet,shift):
> offset = shift - len(alphabet)
> cipheralpha = ''.join((alphabet[offset:], alphabet[0:offset]))
> return dict(zip(alphabet,cipheralpha))
>
> caesar_shift = 3
>
> values = dict()
> values.update(generate_caesar_cipher(string.ascii_letters,caesar_shift))
Close, but you're rotating the lower and uppercase letters together.
In the original they're separate. Here's a different approach using
itertools:
from itertools import islice, cycle
from string import ascii_lowercase, ascii_uppercase
def make_caesar_cipher(alphabet=ascii_lowercase, shift=3):
return dict(zip(alphabet, islice(cycle(alphabet), shift, None)))
values = make_caesar_cipher()
values.update(make_caesar_cipher(ascii_uppercase))
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Re: [Tutor] Script won't run for no apparent reason
On Fri, 10 Aug 2012, Dave Angel wrote: On 08/10/2012 03:53 PM, Joel Goldstick wrote: The clue was actually in his code. See his shebang line -- he's using Python 3. So the error is on the data that the user inputs. The other clue, that I noticed, was that his innermost error was on line 1, "called" from input(). Anyway, the cure is to use raw_input() everywhere instead. Or alternatively, if you want to write forward-looking code: try: input = raw_input except NameError: pass # since we're using python 3+ -Wayne ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Multipage Tiff to PDF
On 11/08/12 06:05, Stuart van Zee wrote: I need to write a simple app that will convert a folder of multi-page tiff files to PDFs. I was hoping to be able to write a simple, one button Tkinter app to do this because the people who need to run this job a few times a day are basically unskilled. My initial idea was to use PIL, but as far as I can tell PIL doesn't handle multi-page tiffs and also doesn't handle the G4 encoding. I would appreciate if someone were to point me in the right direction. https://duckduckgo.com/html/?q=python%20multi%20page%20tiff http://www.google.com.au/search?q=python+multipage+tiff http://pypi.python.org/pypi/tiffany/ Is that enough of a pointer? If not, you will need to give us more information about your general level of Python knowledge. -- Steven ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Script won't run for no apparent reason
Hello,
: #!/usr/bin/env python3
:
: import random
: values = {'a':'d', 'b':'e', 'c':'f', 'd':'g', 'e':'h', 'f':'i', 'g':'j',
: 'h':'k', 'i':'l', 'j':'m', 'k':'n', 'l':'o', 'm':'p', 'n':'q', 'o':'r',
: 'p':'s', 'q':'t', 'r':'u', 's':'v', 't':'w', 'u':'x', 'v':'y', 'w':'z',
: 'x':'a', 'y':'b', 'z':'c', 'A':'D', 'B':'E', 'C':'F', 'D':'G', 'E':'H',
: 'F':'I', 'G':'J', 'H':'K', 'I':'L', 'J':'M', 'K':'N', 'L':'O', 'M':'P',
: 'N':'Q', 'O':'R', 'P':'S', 'Q':'T', 'R':'U', 'S':'V', 'T':'W', 'U':'X',
: 'V':'Y', 'W':'Z', 'X':'A', 'Y':'B', 'Z':'C'}
This sort of thing always catches my eye, and I think to myself
'Are there any tools or libraries in this language that I could use
to generate this, instead of writing out this repetitive data
structure?'
Here's what I did for my own amusement and possibly of benefit to
you. There are probably better solutions out there for your Caesar
cipher enjoyment, but I hope you may find this helpful.
# -- This code should create a dictionary that should look like the
#one above, but you can create it on the fly with a different
#value for the shift. You could also use a different alphabet.
#
def generate_caesar_cipher(alphabet,shift):
offset = shift - len(alphabet)
cipheralpha = ''.join((alphabet[offset:], alphabet[0:offset]))
return dict(zip(alphabet,cipheralpha))
caesar_shift = 3
values = dict()
values.update(generate_caesar_cipher(string.ascii_letters,caesar_shift))
One other thing to consider is that you can use the underutilized
function 'translate' from the string module. The 'maketrans'
function creates a translation table and the 'translate' function
applies that to input.
def alt_trans(plain_alpha,shift):
offset = shift - len(plain_alpha)
cipher_alpha = ''.join((plain_alpha[offset:], plain_alpha[0:offset]))
return string.maketrans(plain_alpha,cipher_alpha)
plaintext = 'Alea iacta est.'
shift_cipher = alt_trans(string.ascii_letters, caesar_shift)
ciphertext = string.translate(plaintext,shift_cipher)
Enjoy Python!
-Martin
--
Martin A. Brown
http://linux-ip.net/
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Re: [Tutor] Script won't run for no apparent reason
>> > OK, I have put it back into Python 2.7, and now I get: > > Traceback (most recent call last): > File "crypto.py", line 27, in > encrypt() > File "crypto.py", line 7, in encrypt > textInputE.list() > AttributeError: 'str' object has no attribute 'list' Would it be a strange conclusion to come to that perhaps the object type of textInputE doesn't have an attribute 'list'? >>> help(str) -- Bodsda ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] The exec command and namespaces
On Fri, Aug 10, 2012 at 4:44 PM, Jaidev Deshpande
wrote:
> Hi,
>
> Supposed I have a string containing a python script and I exec that script.
>
> Is there a way to keep track of the variables that this exec() command
> creates?
Sure. You can provide the dictionaries that exec will use for globals
and locals. So, something like this might get you started:
>>> my_globals = {}
>>> my_locals = {}
>>> exec "favorite_color = 'blue'" in my_globals,my_locals
>>> print(my_locals)
{'favorite_color': 'blue'}
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[Tutor] The exec command and namespaces
Hi, Supposed I have a string containing a python script and I exec that script. Is there a way to keep track of the variables that this exec() command creates? Say, >>> s = 'for i in range(10):\n\tprint i\n\n' >>> exec(s) 0 1 2 3 4 5 6 7 8 9 Is there a way to ascertain that the variable 'i' was created through the exec function? I'm looking for a way to identify all python variables that a given exec call creates. Thanks ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Script won't run for no apparent reason
On 08/10/2012 04:02 PM, Selby Rowley Cannon wrote: > OK, I have put it back into Python 2.7, and now I get: > Traceback (most recent call last): > File "crypto.py", line 27, in > encrypt() > File "crypto.py", line 7, in encrypt > textInputE.list() > AttributeError: 'str' object has no attribute 'list' > What did you intend with that line? Even if there were such a method, it's unlikely that it does anything useful, and you do nothing with its return value. -- DaveA ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Script won't run for no apparent reason
On 08/10/2012 03:53 PM, Joel Goldstick wrote:
> On Fri, Aug 10, 2012 at 3:33 PM, Selby Rowley Cannon
> wrote:
>>>
>> #!/usr/bin/env python3
>>
>> import random
>> values = {'a':'d', 'b':'e', 'c':'f', 'd':'g', 'e':'h', 'f':'i', 'g':'j',
>> 'h':'k', 'i':'l', 'j':'m', 'k':'n', 'l':'o', 'm':'p', 'n':'q', 'o':'r',
>> 'p':'s', 'q':'t', 'r':'u', 's':'v', 't':'w', 'u':'x', 'v':'y', 'w':'z',
>> 'x':'a', 'y':'b', 'z':'c', 'A':'D', 'B':'E', 'C':'F', 'D':'G', 'E':'H',
>> 'F':'I', 'G':'J', 'H':'K', 'I':'L', 'J':'M', 'K':'N', 'L':'O', 'M':'P',
>> 'N':'Q', 'O':'R', 'P':'S', 'Q':'T', 'R':'U', 'S':'V', 'T':'W', 'U':'X',
>> 'V':'Y', 'W':'Z', 'X':'A', 'Y':'B', 'Z':'C'}
>> def encrypt():
>> textInputE = input('Please enter the text you wish to encrypt: ')
>> textInputE.list()
>> for Eletter in textInputE.list():
>> try:
>> print (values[Eletter])
>> except KeyError:
>> print ('Sorry, that input couldn\'t be parsed as text. Try
>> again.')
>> input('Press Enter')
>> def decrypt():
>> textInputD = input('Please enter the numbertext you wish to decrypt')
>> textInputD.list()
>> for Dletter in textInputD.list():
>> try:
>> print (values[Dletter])
>> except KeyError:
>> print ('Sorry, that input couldn\'t be parsed as numbertext from
>> our cipher. Please try again.')
>> input('Press Enter')
>>
>> while True:
>> EorD = input('Encrypt or Decrypt: ')
> so are you sure the line above is really what you have in your code?
> check the quotes
The clue was actually in his code. See his shebang line -- he's using
Python 3. So the error is on the data that the user inputs.
The other clue, that I noticed, was that his innermost error was on line
1, "called" from input().
Anyway, the cure is to use raw_input() everywhere instead.
>>
>>
>> Thanks, I am not quite used to this client yet. The next error is:
>>
>> Traceback (most recent call last):
>> File "crypto.py", line 25, in
>> EorD = input('Encrypt or Decrypt: ')
>> File "", line 1, in
>> NameError: name 'Encrypt' is not defined
>>
>
>
--
DaveA
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[Tutor] Multipage Tiff to PDF
I need to write a simple app that will convert a folder of multi-page tiff files to PDFs. I was hoping to be able to write a simple, one button Tkinter app to do this because the people who need to run this job a few times a day are basically unskilled. My initial idea was to use PIL, but as far as I can tell PIL doesn't handle multi-page tiffs and also doesn't handle the G4 encoding.I would appreciate if someone were to point me in the right direction.s ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Script won't run for no apparent reason
On 10/08/12 20:53, Joel Goldstick wrote:
On Fri, Aug 10, 2012 at 3:33 PM, Selby Rowley Cannon
wrote:
On 10/08/12 20:07, Joel Goldstick wrote:
On Fri, Aug 10, 2012 at 2:57 PM, Selby Rowley Cannon
wrote:
On 10/08/12 18:17, Joel Goldstick wrote:
On Fri, Aug 10, 2012 at 1:05 PM, Selby Rowley Cannon
wrote:
I have written a small application to encrypt some text. The script
looks
fine to me, but it won't run and I can't figure out why. I have
attached
it,
if anyone knows why it doesn't work please let me know!
What do you mean 'it won't run'? Do you get an error with Traceback?
I glanced at your code, and your dictionary ends like this: , 'X':'A',
'Y':'B', 'Z':'C',
There is no closing brace
OK,
File "./crypto.py", line 6
def encrypt():
^
SyntaxError: invalid syntax
First, don't reply to me, reply to the group. That might mean
choosing reply all.
So, your first problem is that the dictionary isn't closed. This is
causing the error at line 6
fix that and find your next error. It looks like there are lots of them
With such a small file you would do better to just post the code
directly. That way if people see problems they can point them out in
the body of the reply
good luck
#!/usr/bin/env python3
import random
values = {'a':'d', 'b':'e', 'c':'f', 'd':'g', 'e':'h', 'f':'i', 'g':'j',
'h':'k', 'i':'l', 'j':'m', 'k':'n', 'l':'o', 'm':'p', 'n':'q', 'o':'r',
'p':'s', 'q':'t', 'r':'u', 's':'v', 't':'w', 'u':'x', 'v':'y', 'w':'z',
'x':'a', 'y':'b', 'z':'c', 'A':'D', 'B':'E', 'C':'F', 'D':'G', 'E':'H',
'F':'I', 'G':'J', 'H':'K', 'I':'L', 'J':'M', 'K':'N', 'L':'O', 'M':'P',
'N':'Q', 'O':'R', 'P':'S', 'Q':'T', 'R':'U', 'S':'V', 'T':'W', 'U':'X',
'V':'Y', 'W':'Z', 'X':'A', 'Y':'B', 'Z':'C'}
def encrypt():
textInputE = input('Please enter the text you wish to encrypt: ')
textInputE.list()
for Eletter in textInputE.list():
try:
print (values[Eletter])
except KeyError:
print ('Sorry, that input couldn\'t be parsed as text. Try
again.')
input('Press Enter')
def decrypt():
textInputD = input('Please enter the numbertext you wish to decrypt')
textInputD.list()
for Dletter in textInputD.list():
try:
print (values[Dletter])
except KeyError:
print ('Sorry, that input couldn\'t be parsed as numbertext from
our cipher. Please try again.')
input('Press Enter')
while True:
EorD = input('Encrypt or Decrypt: ')
so are you sure the line above is really what you have in your code?
check the quotes
if EorD == 'Encrypt' or EorD == 'encrypt':
encrypt()
elif EorD == 'Decrypt' or EorD == 'decrypt':
decrypt()
else:
print('Encrypt or Decrypt?')
Thanks, I am not quite used to this client yet. The next error is:
Traceback (most recent call last):
File "crypto.py", line 25, in
EorD = input('Encrypt or Decrypt: ')
File "", line 1, in
NameError: name 'Encrypt' is not defined
OK, I have put it back into Python 2.7, and now I get:
Traceback (most recent call last):
File "crypto.py", line 27, in
encrypt()
File "crypto.py", line 7, in encrypt
textInputE.list()
AttributeError: 'str' object has no attribute 'list'
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Re: [Tutor] Script won't run for no apparent reason
On Fri, Aug 10, 2012 at 3:33 PM, Selby Rowley Cannon
wrote:
> On 10/08/12 20:07, Joel Goldstick wrote:
>>
>> On Fri, Aug 10, 2012 at 2:57 PM, Selby Rowley Cannon
>> wrote:
>>>
>>> On 10/08/12 18:17, Joel Goldstick wrote:
On Fri, Aug 10, 2012 at 1:05 PM, Selby Rowley Cannon
wrote:
>
> I have written a small application to encrypt some text. The script
> looks
> fine to me, but it won't run and I can't figure out why. I have
> attached
> it,
> if anyone knows why it doesn't work please let me know!
>
What do you mean 'it won't run'? Do you get an error with Traceback?
I glanced at your code, and your dictionary ends like this: , 'X':'A',
'Y':'B', 'Z':'C',
There is no closing brace
>>>
>>> OK,
>>>
>>>File "./crypto.py", line 6
>>> def encrypt():
>>>^
>>> SyntaxError: invalid syntax
>>>
>> First, don't reply to me, reply to the group. That might mean
>> choosing reply all.
>>
>> So, your first problem is that the dictionary isn't closed. This is
>> causing the error at line 6
>>
>> fix that and find your next error. It looks like there are lots of them
>>
>> With such a small file you would do better to just post the code
>> directly. That way if people see problems they can point them out in
>> the body of the reply
>>
>> good luck
>
> #!/usr/bin/env python3
>
> import random
> values = {'a':'d', 'b':'e', 'c':'f', 'd':'g', 'e':'h', 'f':'i', 'g':'j',
> 'h':'k', 'i':'l', 'j':'m', 'k':'n', 'l':'o', 'm':'p', 'n':'q', 'o':'r',
> 'p':'s', 'q':'t', 'r':'u', 's':'v', 't':'w', 'u':'x', 'v':'y', 'w':'z',
> 'x':'a', 'y':'b', 'z':'c', 'A':'D', 'B':'E', 'C':'F', 'D':'G', 'E':'H',
> 'F':'I', 'G':'J', 'H':'K', 'I':'L', 'J':'M', 'K':'N', 'L':'O', 'M':'P',
> 'N':'Q', 'O':'R', 'P':'S', 'Q':'T', 'R':'U', 'S':'V', 'T':'W', 'U':'X',
> 'V':'Y', 'W':'Z', 'X':'A', 'Y':'B', 'Z':'C'}
> def encrypt():
> textInputE = input('Please enter the text you wish to encrypt: ')
> textInputE.list()
> for Eletter in textInputE.list():
> try:
> print (values[Eletter])
> except KeyError:
> print ('Sorry, that input couldn\'t be parsed as text. Try
> again.')
> input('Press Enter')
> def decrypt():
> textInputD = input('Please enter the numbertext you wish to decrypt')
> textInputD.list()
> for Dletter in textInputD.list():
> try:
> print (values[Dletter])
> except KeyError:
> print ('Sorry, that input couldn\'t be parsed as numbertext from
> our cipher. Please try again.')
> input('Press Enter')
>
> while True:
> EorD = input('Encrypt or Decrypt: ')
so are you sure the line above is really what you have in your code?
check the quotes
> if EorD == 'Encrypt' or EorD == 'encrypt':
> encrypt()
> elif EorD == 'Decrypt' or EorD == 'decrypt':
> decrypt()
> else:
> print('Encrypt or Decrypt?')
>
> Thanks, I am not quite used to this client yet. The next error is:
>
> Traceback (most recent call last):
> File "crypto.py", line 25, in
> EorD = input('Encrypt or Decrypt: ')
> File "", line 1, in
> NameError: name 'Encrypt' is not defined
>
--
Joel Goldstick
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Re: [Tutor] Script won't run for no apparent reason
On 08/10/2012 03:33 PM, Selby Rowley Cannon wrote:
> On 10/08/12 20:07, Joel Goldstick wrote:
>> On Fri, Aug 10, 2012 at 2:57 PM, Selby Rowley Cannon
>> wrote:
>>> On 10/08/12 18:17, Joel Goldstick wrote:
On Fri, Aug 10, 2012 at 1:05 PM, Selby Rowley Cannon
wrote:
> I have written a small application to encrypt some text. The
> script looks
> fine to me, but it won't run and I can't figure out why. I have
> attached
> it,
> if anyone knows why it doesn't work please let me know!
>
What do you mean 'it won't run'? Do you get an error with Traceback?
I glanced at your code, and your dictionary ends like this: , 'X':'A',
'Y':'B', 'Z':'C',
There is no closing brace
>>> OK,
>>>
>>>File "./crypto.py", line 6
>>> def encrypt():
>>>^
>>> SyntaxError: invalid syntax
>>>
>> First, don't reply to me, reply to the group. That might mean
>> choosing reply all.
>>
>> So, your first problem is that the dictionary isn't closed. This is
>> causing the error at line 6
>>
>> fix that and find your next error. It looks like there are lots of them
>>
>> With such a small file you would do better to just post the code
>> directly. That way if people see problems they can point them out in
>> the body of the reply
>>
>> good luck
> #!/usr/bin/env python3
>
> import random
> values = {'a':'d', 'b':'e', 'c':'f', 'd':'g', 'e':'h', 'f':'i',
> 'g':'j', 'h':'k', 'i':'l', 'j':'m', 'k':'n', 'l':'o', 'm':'p',
> 'n':'q', 'o':'r', 'p':'s', 'q':'t', 'r':'u', 's':'v', 't':'w',
> 'u':'x', 'v':'y', 'w':'z', 'x':'a', 'y':'b', 'z':'c', 'A':'D',
> 'B':'E', 'C':'F', 'D':'G', 'E':'H', 'F':'I', 'G':'J', 'H':'K',
> 'I':'L', 'J':'M', 'K':'N', 'L':'O', 'M':'P', 'N':'Q', 'O':'R',
> 'P':'S', 'Q':'T', 'R':'U', 'S':'V', 'T':'W', 'U':'X', 'V':'Y',
> 'W':'Z', 'X':'A', 'Y':'B', 'Z':'C'}
> def encrypt():
> textInputE = input('Please enter the text you wish to encrypt: ')
> textInputE.list()
> for Eletter in textInputE.list():
> try:
> print (values[Eletter])
> except KeyError:
> print ('Sorry, that input couldn\'t be parsed as text. Try
> again.')
> input('Press Enter')
> def decrypt():
> textInputD = input('Please enter the numbertext you wish to decrypt')
> textInputD.list()
> for Dletter in textInputD.list():
> try:
> print (values[Dletter])
> except KeyError:
> print ('Sorry, that input couldn\'t be parsed as
> numbertext from our cipher. Please try again.')
> input('Press Enter')
>
> while True:
> EorD = input('Encrypt or Decrypt: ')
> if EorD == 'Encrypt' or EorD == 'encrypt':
> encrypt()
> elif EorD == 'Decrypt' or EorD == 'decrypt':
> decrypt()
> else:
> print('Encrypt or Decrypt?')
>
> Thanks, I am not quite used to this client yet. The next error is:
>
> Traceback (most recent call last):
> File "crypto.py", line 25, in
> EorD = input('Encrypt or Decrypt: ')
> File "", line 1, in
> NameError: name 'Encrypt' is not defined
>
Did you play with the script as it stands now? Did you try typing things
other than Encrypt at the input prompt? You'll notice that the error
message is complaining about what YOU typed as the user.
Looks like you're running Python 3 code on a Python 2 system. If you're
running Python 2, you want to use raw_input() which gets a string,
rather than input(), which tries to evaluate an expression.
--
DaveA
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Re: [Tutor] Script won't run for no apparent reason
On 10/08/12 20:07, Joel Goldstick wrote:
On Fri, Aug 10, 2012 at 2:57 PM, Selby Rowley Cannon
wrote:
On 10/08/12 18:17, Joel Goldstick wrote:
On Fri, Aug 10, 2012 at 1:05 PM, Selby Rowley Cannon
wrote:
I have written a small application to encrypt some text. The script looks
fine to me, but it won't run and I can't figure out why. I have attached
it,
if anyone knows why it doesn't work please let me know!
What do you mean 'it won't run'? Do you get an error with Traceback?
I glanced at your code, and your dictionary ends like this: , 'X':'A',
'Y':'B', 'Z':'C',
There is no closing brace
OK,
File "./crypto.py", line 6
def encrypt():
^
SyntaxError: invalid syntax
First, don't reply to me, reply to the group. That might mean
choosing reply all.
So, your first problem is that the dictionary isn't closed. This is
causing the error at line 6
fix that and find your next error. It looks like there are lots of them
With such a small file you would do better to just post the code
directly. That way if people see problems they can point them out in
the body of the reply
good luck
#!/usr/bin/env python3
import random
values = {'a':'d', 'b':'e', 'c':'f', 'd':'g', 'e':'h', 'f':'i', 'g':'j',
'h':'k', 'i':'l', 'j':'m', 'k':'n', 'l':'o', 'm':'p', 'n':'q', 'o':'r',
'p':'s', 'q':'t', 'r':'u', 's':'v', 't':'w', 'u':'x', 'v':'y', 'w':'z',
'x':'a', 'y':'b', 'z':'c', 'A':'D', 'B':'E', 'C':'F', 'D':'G', 'E':'H',
'F':'I', 'G':'J', 'H':'K', 'I':'L', 'J':'M', 'K':'N', 'L':'O', 'M':'P',
'N':'Q', 'O':'R', 'P':'S', 'Q':'T', 'R':'U', 'S':'V', 'T':'W', 'U':'X',
'V':'Y', 'W':'Z', 'X':'A', 'Y':'B', 'Z':'C'}
def encrypt():
textInputE = input('Please enter the text you wish to encrypt: ')
textInputE.list()
for Eletter in textInputE.list():
try:
print (values[Eletter])
except KeyError:
print ('Sorry, that input couldn\'t be parsed as text. Try
again.')
input('Press Enter')
def decrypt():
textInputD = input('Please enter the numbertext you wish to decrypt')
textInputD.list()
for Dletter in textInputD.list():
try:
print (values[Dletter])
except KeyError:
print ('Sorry, that input couldn\'t be parsed as numbertext
from our cipher. Please try again.')
input('Press Enter')
while True:
EorD = input('Encrypt or Decrypt: ')
if EorD == 'Encrypt' or EorD == 'encrypt':
encrypt()
elif EorD == 'Decrypt' or EorD == 'decrypt':
decrypt()
else:
print('Encrypt or Decrypt?')
Thanks, I am not quite used to this client yet. The next error is:
Traceback (most recent call last):
File "crypto.py", line 25, in
EorD = input('Encrypt or Decrypt: ')
File "", line 1, in
NameError: name 'Encrypt' is not defined
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Re: [Tutor] Script won't run for no apparent reason
On Fri, Aug 10, 2012 at 2:57 PM, Selby Rowley Cannon wrote: > On 10/08/12 18:17, Joel Goldstick wrote: >> >> On Fri, Aug 10, 2012 at 1:05 PM, Selby Rowley Cannon >> wrote: >>> >>> I have written a small application to encrypt some text. The script looks >>> fine to me, but it won't run and I can't figure out why. I have attached >>> it, >>> if anyone knows why it doesn't work please let me know! >>> >> What do you mean 'it won't run'? Do you get an error with Traceback? >> >> I glanced at your code, and your dictionary ends like this: , 'X':'A', >> 'Y':'B', 'Z':'C', >> >> There is no closing brace > > OK, > > File "./crypto.py", line 6 > def encrypt(): > ^ > SyntaxError: invalid syntax > First, don't reply to me, reply to the group. That might mean choosing reply all. So, your first problem is that the dictionary isn't closed. This is causing the error at line 6 fix that and find your next error. It looks like there are lots of them With such a small file you would do better to just post the code directly. That way if people see problems they can point them out in the body of the reply good luck -- Joel Goldstick ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Recursive optimization function, binary tree
On 10/08/12 21:44, Roman Vashkevich wrote: Alright, this may sound like a dumb stupid question. I am testing a recursive optimization function that builds a binary tree. I started a hand simulation but the amount of manual work grows exponentially with the amount of function frames. Is there a graphical testing tool for such a task? This is not a dumb stupid question. It is an advanced question. This is a mailing list for questions about learning the Python language, not general Python-related questions or questions about advanced code testing tools. If you are lucky, *maybe* somebody can answer the question if you give more detail about what you want -- give as an example of your function, the expected input, and the expected output, and perhaps we can give you some ideas. Otherwise, try on the main Python mailing list, python-l...@python.org, also available as a Newsgroup comp.lang.python. -- Steven ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Script won't run for no apparent reason
On Fri, Aug 10, 2012 at 1:05 PM, Selby Rowley Cannon wrote: > I have written a small application to encrypt some text. The script looks > fine to me, but it won't run and I can't figure out why. I have attached it, > if anyone knows why it doesn't work please let me know! > What do you mean 'it won't run'? Do you get an error with Traceback? I glanced at your code, and your dictionary ends like this: , 'X':'A', 'Y':'B', 'Z':'C', There is no closing brace -- Joel Goldstick ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] Script won't run for no apparent reason
I have written a small application to encrypt some text. The script
looks fine to me, but it won't run and I can't figure out why. I have
attached it, if anyone knows why it doesn't work please let me know!
#!/usr/bin/env python3
import random
values = {'a':'d', 'b':'e', 'c':'f', 'd':'g', 'e':'h', 'f':'i', 'g':'j', 'h':'k', 'i':'l', 'j':'m', 'k':'n', 'l':'o', 'm':'p', 'n':'q', 'o':'r', 'p':'s', 'q':'t', 'r':'u', 's':'v', 't':'w', 'u':'x', 'v':'y', 'w':'z', 'x':'a', 'y':'b', 'z':'c', 'A':'D', 'B':'E', 'C':'F', 'D':'G', 'E':'H', 'F':'I', 'G':'J', 'H':'K', 'I':'L', 'J':'M', 'K':'N', 'L':'O', 'M':'P', 'N':'Q', 'O':'R', 'P':'S', 'Q':'T', 'R':'U', 'S':'V', 'T':'W', 'U':'X', 'V':'Y', 'W':'Z', 'X':'A', 'Y':'B', 'Z':'C',
def encrypt():
textInputE = input('Please enter the text you wish to encrypt: ')
textInputE.list()
for Eletter in textInputE.list():
try:
print (values[Eletter])
except KeyError:
print ('Sorry, that input couldn\'t be parsed as text. Try again.')
input('Press Enter')
def decrypt():
textInputD = input('Please enter the numbertext you wish to decrypt')
textInputD.list()
for Dletter in textInputD.list():
try:
print (values[Dletter])
except KeyError:
print ('Sorry, that input couldn\'t be parsed as numbertext from our cipher. Please try again.')
input('Press Enter')
while True:
EorD = input('Encrypt or Decrypt: ')
if EorD == 'Encrypt' or EorD == 'encrypt':
encrypt()
elif EorD == 'Decrypt' or EorD == 'decrypt':
decrypt()
else:
print('Encrypt or Decrypt?')
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Re: [Tutor] help--- opening csv in different functions
On 10/08/12 11:02, leon zaat wrote: I am trying to fill a file. I assume you mean create a file? Or overwrite an existing one? Or append to an existing one. There isn't really a concept of filling a file, they just keep getting bigger until you ruin out of space. (There are some filesystems that support creating fixed size files but they are very marginal cases) The seems to work, but after 200.00 entries i got the message that opening is not allowed. What i am doing wrong? You shouldn't be continually opening the file... And when you do you should be sure to close it again as soon as possible. Is there a way to open the file once. Yes that's usually what you would do. Open it, collect your data and write it out (either as you collect it or all at once as you prefer) then close the file. When i didn't open it in the first part, it said it couldn't find the file. Not sure what that means but if you haven't created it any attempt to read it will fail. But your code was way too long for me to be bothered reading through, sorry. -- Alan G Author of the Learn to Program web site http://www.alan-g.me.uk/ ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Confusion with Python, Bash and Command Prompt
On Aug 10, 2012, at 12:20 AM, Steven D'Aprano wrote: > [byte] > That is not Python's doing. That is the shell, and so it depends > entirely on your choice of operating system and shell. It works on Unix, > Linux and probably Mac OS, but not on Windows. > Yes, it definitely does work on Mac OS-X as well. -Bill ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Recursive optimization function, binary tree
On 8/10/2012 7:44 AM, Roman Vashkevich wrote: Alright, this may sound like a dumb stupid question. I am testing a recursive optimization function that builds a binary tree. I started a hand simulation but the amount of manual work grows exponentially with the amount of function frames. Is there a graphical testing tool for such a task? Perhaps - but I'd need more details. -- Bob Gailer 919-636-4239 Chapel Hill NC ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] Recursive optimization function, binary tree
Alright, this may sound like a dumb stupid question. I am testing a recursive optimization function that builds a binary tree. I started a hand simulation but the amount of manual work grows exponentially with the amount of function frames. Is there a graphical testing tool for such a task? RV ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] help--- opening csv in different functions
On 08/10/2012 06:02 AM, leon zaat wrote: > I am trying to fill a file. > When i am start the leading fuction the file schould be overwriting the , > probarly, existing csv file. > Accoording from keys from different keys in my sql files, information is > collected and written in a other function. > > I tried something like this > > class BAGExtractPlus(wx.Frame): > .. > > #-- > # schrijven van de records > > #-- > def schrijfExportRecord(self,identificatie, hoofdadres, > verblijfobjectgeometrie, dag): > > ofile=open(r'D:\bestanden\BAG\adrescoordinaten.csv', 'wa') > > verblijfhoofd = csv.writer(ofile, delimiter=',', > > quotechar='"', quoting=csv.QUOTE_NONNUMERIC) > sql1=""; > sql1="Select huisnummer, huisletter, huisnummertoevoeging, postcode, > gerelateerdeopenbareruimte from nummeraanduiding " > sql1a= "where aanduidingrecordinactief<> 'J' and" > hsql1=" einddatum > '" + dag + "' and identificatie = '" + > hoofdadres + "'"; > sql1= sql1 + sql1a + hsql1; > num= database.select(sql1); > for row in num: > huisnummer=row[0]; > huisletter=row[1]; > huisnummertoevoeging=row[2]; > postcode=row[3]; > gerelateerdeopenbareruimte=row[4]; > sql2="Select openbareruimtenaam, gerelateerdewoonplaats from > openbareruimte where aanduidingrecordinactief<> 'J'" > sql2= sql2 + "and einddatum > '" + dag + "' and identificatie = > '" + gerelateerdeopenbareruimte + "'"; > opn=database.select(sql2); > for row in database.select(sql2): > openbareruimtenaam=row[0]; > gerelateerdewoonplaats=row[1]; > sql3="Select woonplaatsnaam from woonplaats where > aanduidingrecordinactief<> 'J'" > sql3= sql3 + "and einddatum > '" + dag + "' and > identificatie = '" + gerelateerdewoonplaats + "'"; > wpl=database.select(sql3); > for row in wpl: > woonplaatsnaam=row[0]; > newrow=[identificatie, verblijfobjectgeometrie, > huisnummer, huisletter, huisnummertoevoeging, postcode,openbareruimtenaam, > woonplaatsnaam]; > verblijfhoofd.writerow(newrow); > > del wpl[:]; > del opn[:]; > del num[:]; > > > #-- > # Exporteer benodigde gegevens > > #-- > def ExportBestanden(self, event): > > ofile=open(r'D:\bestanden\BAG\adrescoordinaten.csv', 'wb') > verblijfhoofd = csv.writer(ofile, delimiter=',', > quotechar='"', quoting=csv.QUOTE_NONNUMERIC) > dag=str(datetime.date.today()); > sql4="Select adresseerbaarobjectnevenadres.identificatie, > adresseerbaarobjectnevenadres.nevenadres from adresseerbaarobjectnevenadres > where aanduidingrecordinactief<> 'J' order by > adresseerbaarobjectnevenadres.identificatie" > neven= database.select(sql4); > for row in neven: > nidentificatie=row[0]; > nevenadres=row[1]; > > sql="Select identificatie, hoofdadres, ligplaatsgeometrie from > ligplaats where aanduidingrecordinactief<> 'J' and einddatum >'" + dag + "' > and identificatie = '"+ nidentificatie + "'" > lig= database.select(sql); > for row in lig: > hoofdadres=nevenadres; > identificatie=row[0]; > verblijfobjectgeometrie=row[2]; > self.schrijfExportRecord(identificatie, hoofdadres, > verblijfobjectgeometrie, dag) > sql="Select identificatie, hoofdadres, verblijfsobjectgeometrie from > verblijfsobject where aanduidingrecordinactief<> 'J' and einddatum >'" + dag > + "' and identificatie = '"+ nidentificatie + "'" > vbo= database.select(sql); > for row in vbo: > hoofdadres=row[1]; > identificatie=row[0]; > verblijfobjectgeometrie=row[2]; > self.schrijfExportRecord(identificatie, hoofdadres, > verblijfobjectgeometrie, dag) > sql="Select identificatie, hoofdadres, standplaatsgeometrie from > standplaats where aanduidingrecordinactief<> 'J' and einddatum >'" + dag + "' > and identificatie = '"+ nidentificatie + "'" > stand= database.select(sql); > for row in stand: > hoofdadres=nevenadres; > identificatie=row[0]; > verblijfobjectgeometrie=row[2]; > self.schrijfExportRecord(identificatie, hoofdadres, > verblijfobje
[Tutor] help--- opening csv in different functions
I am trying to fill a file. When i am start the leading fuction the file schould be overwriting the , probarly, existing csv file. Accoording from keys from different keys in my sql files, information is collected and written in a other function. I tried something like this class BAGExtractPlus(wx.Frame): .. #-- # schrijven van de records #-- def schrijfExportRecord(self,identificatie, hoofdadres, verblijfobjectgeometrie, dag): ofile=open(r'D:\bestanden\BAG\adrescoordinaten.csv', 'wa') verblijfhoofd = csv.writer(ofile, delimiter=',', quotechar='"', quoting=csv.QUOTE_NONNUMERIC) sql1=""; sql1="Select huisnummer, huisletter, huisnummertoevoeging, postcode, gerelateerdeopenbareruimte from nummeraanduiding " sql1a= "where aanduidingrecordinactief<> 'J' and" hsql1=" einddatum > '" + dag + "' and identificatie = '" + hoofdadres + "'"; sql1= sql1 + sql1a + hsql1; num= database.select(sql1); for row in num: huisnummer=row[0]; huisletter=row[1]; huisnummertoevoeging=row[2]; postcode=row[3]; gerelateerdeopenbareruimte=row[4]; sql2="Select openbareruimtenaam, gerelateerdewoonplaats from openbareruimte where aanduidingrecordinactief<> 'J'" sql2= sql2 + "and einddatum > '" + dag + "' and identificatie = '" + gerelateerdeopenbareruimte + "'"; opn=database.select(sql2); for row in database.select(sql2): openbareruimtenaam=row[0]; gerelateerdewoonplaats=row[1]; sql3="Select woonplaatsnaam from woonplaats where aanduidingrecordinactief<> 'J'" sql3= sql3 + "and einddatum > '" + dag + "' and identificatie = '" + gerelateerdewoonplaats + "'"; wpl=database.select(sql3); for row in wpl: woonplaatsnaam=row[0]; newrow=[identificatie, verblijfobjectgeometrie, huisnummer, huisletter, huisnummertoevoeging, postcode,openbareruimtenaam, woonplaatsnaam]; verblijfhoofd.writerow(newrow); del wpl[:]; del opn[:]; del num[:]; #-- # Exporteer benodigde gegevens #-- def ExportBestanden(self, event): ofile=open(r'D:\bestanden\BAG\adrescoordinaten.csv', 'wb') verblijfhoofd = csv.writer(ofile, delimiter=',', quotechar='"', quoting=csv.QUOTE_NONNUMERIC) dag=str(datetime.date.today()); sql4="Select adresseerbaarobjectnevenadres.identificatie, adresseerbaarobjectnevenadres.nevenadres from adresseerbaarobjectnevenadres where aanduidingrecordinactief<> 'J' order by adresseerbaarobjectnevenadres.identificatie" neven= database.select(sql4); for row in neven: nidentificatie=row[0]; nevenadres=row[1]; sql="Select identificatie, hoofdadres, ligplaatsgeometrie from ligplaats where aanduidingrecordinactief<> 'J' and einddatum >'" + dag + "' and identificatie = '"+ nidentificatie + "'" lig= database.select(sql); for row in lig: hoofdadres=nevenadres; identificatie=row[0]; verblijfobjectgeometrie=row[2]; self.schrijfExportRecord(identificatie, hoofdadres, verblijfobjectgeometrie, dag) sql="Select identificatie, hoofdadres, verblijfsobjectgeometrie from verblijfsobject where aanduidingrecordinactief<> 'J' and einddatum >'" + dag + "' and identificatie = '"+ nidentificatie + "'" vbo= database.select(sql); for row in vbo: hoofdadres=row[1]; identificatie=row[0]; verblijfobjectgeometrie=row[2]; self.schrijfExportRecord(identificatie, hoofdadres, verblijfobjectgeometrie, dag) sql="Select identificatie, hoofdadres, standplaatsgeometrie from standplaats where aanduidingrecordinactief<> 'J' and einddatum >'" + dag + "' and identificatie = '"+ nidentificatie + "'" stand= database.select(sql); for row in stand: hoofdadres=nevenadres; identificatie=row[0]; verblijfobjectgeometrie=row[2]; self.schrijfExportRecord(identificatie, hoofdadres, verblijfobjectgeometrie, dag) del stand[:]; del vbo[:]; del lig[:]; del neven[:]; sql="Select identificatie, hoofdadres, ligplaatsgeometrie from ligplaats where aanduidingrecordinactief<> 'J' and einddatum >'" + dag + "'"
Re: [Tutor] Confusion with Python, Bash and Command Prompt
On 10/08/12 15:35, Modulok wrote: ... My Question: Is it true that doing that is as same as doing #!/usr/bin/env python on Unix? Because I think that the matter of shebang is limited to Bash and Windows don't have a bash, it has a Command Prompt. And I don't think such thing happens in Windows. It has nothing directly do with bash. It has to do with the operating system's 'program loader'. Correction noted, thank you. -- Steven ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
