Relative imports – ModuleNotFoundError: No module named x
This is the first time I’ve really sat down and tried python 3, and seem to be failing miserably. I have the following two files:
python-import
Automatically create requirements.txt
Sometimes I download the python source code from github and don’t know how to install all the dependencies. If there is no requirements.txt file I have to create it by hands.
The question is:
Given the python source code directory is it possible to create requirements.txt automatically from the import section?
How to check if a Python module exists without importing it
How can I know if a Python module exists, without importing it?
Does python optimize modules when they are imported multiple times?
If a large module is loaded by some submodule of your code, is there any benefit to referencing the module from that namespace instead of importing it again?
How to import a Python class that is in a directory above?
I want to inherit from a class in a file that lies in a directory above the current one.
How to mock an import
Module A includes import B at its top. However under test conditions I’d like to mock B in A (mock A.B) and completely refrain from importing B.
Absolute vs. explicit relative import of Python module
I’m wondering about the preferred way to import packages in a Python application. I have a package structure like this:
PYTHONPATH vs. sys.path
Another developer and I disagree about whether PYTHONPATH or sys.path should be used to allow Python to find a Python package in a user (e.g., development) directory.
Trying to import module with the same name as a built-in module causes an import error
I have a module that conflicts with a built-in module. For example, a myapp.email module defined in myapp/email.py.
List all the modules that are part of a python package?
Is there a straightforward way to find all the modules that are part of a python package? I’ve found this old discussion, which is not really conclusive, but I’d love to have a definite answer before I roll out my own solution based on os.listdir().