[Tutor] Tkinter: no module named messagebox

[brandon w]

On 08/14/2011 02:29 AM, Peter Otten wrote:
> brandon w wrote:
>
>    
>> On 08/13/2011 04:49 PM, Peter Otten wrote:
>>      
>    
>>>> How do I find the modules in Tkinter?
>>>>
>>>>          
>>> The simplest approach is probably to explore your file system:
>>>
>>> Step 1: where's Tkinter?
>>>
>>> $ python -c 'import Tkinter, os; print os.path.dirname(Tkinter.__file__)'
>>> /usr/lib/python2.6/lib-tk
>>>        
>    
>> I have tried # 1. with another command but all I get is an error messages.
>>
>> $ python -c 'import time, os; print os.path.dirname(time.__doc__)' #
>> This one gave no output.
>>      
> You typed time.__doc__ instead of time.__file__. With the latter you'd get
> an AttributeError because the time module is implemented in C.
>
>    
>> $ python -c 'import time, strftime, os; print
>> os.path.dirname(strftime.__doc__)'
>> Traceback (most recent call last):
>>     File "<string>", line 1, in<module>
>> ImportError: No module named strftime
>>      
> Well you cannot import a module that doesn't exist...
>
>    
>> $ python -c 'import os; from time import strftime; print
>> os.path.dirname(strftime.__file__)'
>> Traceback (most recent call last):
>>     File "<string>", line 1, in<module>
>> AttributeError: 'builtin_function_or_method' object has no attribute
>> '__file__'
>>
>> $ python -c 'import time, os; print os.path.dirname(time.__file__)'
>> Traceback (most recent call last):
>>     File "<string>", line 1, in<module>
>>     File "/usr/lib/python2.6/posixpath.py", line 119, in dirname
>>       i = p.rfind('/') + 1
>> AttributeError: 'NoneType' object has no attribute 'rfind'
>>
>> $  python -c 'import time, os; print os.path.dirname(time.__package__)'
>> more errors
>>
>> I am obviously doing something wrong.
>>      
> The method to find the location of a module that I gave works only for
> modules and only for modules implemented in Python. You can find both
> functions and modules implemented in Python with inspect.getsourcefile():
>
>    
>>>> from inspect import getsourcefile
>>>> import os
>>>> getsourcefile(os) # a module
>>>>          
> '/usr/lib/python2.6/os.py'
>    
>>>> getsourcefile(os.path) # another module with an interesting filename
>>>>          
> '/usr/lib/python2.6/posixpath.py'
>    
>>>> getsourcefile(os.walk) # a function implemented in Python
>>>>          
> '/usr/lib/python2.6/os.py'
>    
>>>> getsourcefile(os.mkdir) # a function implemented in C
>>>>          
> Traceback (most recent call last):
>    File "<stdin>", line 1, in<module>
>    File "/usr/lib/python2.6/inspect.py", line 441, in getsourcefile
>      filename = getfile(object)
>    File "/usr/lib/python2.6/inspect.py", line 418, in getfile
>      raise TypeError('arg is not a module, class, method, '
> TypeError: arg is not a module, class, method, function, traceback, frame,
> or code object
>
>
>
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>    
Thank a lot for your help. I will study what you have shown me.