Some more information on finding python, its modules and whether they are built-in, modules of the standard distribution or those in the site-packages folder
References:
29.12. inspect — Inspect live objects — Python 3.4.4 documentation look at the table on Types and Members
http://stackoverflow.com/questions/247770/retrieving-python-module-path just one of hundreds of examples.
| Type | Attribute | Description |
|---|
| module | __doc__ | documentation string |
| __file__ | filename (missing for built-in modules) |
| Tips | Example |
|---|
A standard installation compatible with ArcMap and arcpy is assumed. These: - dir(module_name)
- help(module_name)
are your friends. Look for a __file__ property in the function/property list. | The os module does... >>> import os
>>> dir(os)
[ ... snip ... '__doc__', '__file__',
'__loader__', '__name__', ... snip ... ]
>>> os.__file__
'C:\\Python34\\lib\\os.py'
>>>
The time module doesn't >>> import time
>>> dir(time)
[ ... snip ... '__doc__', '__file__',
'__loader__', '__name__', ... snip ... ]
>>> time.__file__
Traceback (most recent call last):
File "<interactive input>", line 1, in <module>
AttributeError: 'module' object has no attribute '__file__'
|
Modules in the C:\PythonXX\lib\ folder will have a __file__ property. | >>>
>>> import collections
>>> collections.__file__
'C:\\Python34\\lib\\collections\\__init__.py'
|
| Modules that aren't part of the standard distribution and have to be installed via pip or other means, get put in the site-packages folder and they will have a __file__ | How about arcpy? >>> import arcpy
>>> arcpy.__file__
'C:\\Program Files\\ArcGIS\\Pro\\Resources\\ArcPy\\arcpy\\__init__.py'
>>>
And my fav... >>> import numpy as np
>>> np.__file__
'C:\\Python34\\lib\\site-packages\\numpy\\__init__.py'
|
| You can use the inspect module as well... all the cool programmers do ... | Numpy was previously imported as np. Notice the results are the same as the np.__file__ approach. >>> import inspect
>>> inspect.getfile(np)
'C:\\Python34\\lib\\site-packages\\numpy\\__init__.py'
>>>
Lets try time. >>> inspect.getfile(time)
Traceback (most recent call last):
File "<interactive input>", line 1, in <module>
File "C:\Python34\lib\inspect.py", line 518, in getfile
raise TypeError('{!r} is a built-in module'.format(object))
TypeError: <module 'time' (built-in)> is a built-in module
>>>
No... it is a built-in. But... you can another way... >>> import time
>>> inspect.getmodule(time)
<module 'time' (built-in)>
>>>
|
