Pythonpath not updating sys.path

Depending on whether you are organizing your code as a package or a module, they are treated slightly differently. We will look at the difference between a module and a package in a moment, but the main idea is this:. If a package is invoked directly e. In a module a single. You can take advantage of this and execute a section of code only if the module is invoked directly, and not when it is imported. When you start a Python interpreter, one of the things it creates automatically is a list that contains all of directories it will use to search for modules when importing.

This list is available in a variable named sys. Here is an example of printing out sys. Note that the empty '' entry means the current directory. You are allowed to modify sys. Just be sure to modify it before you call import. It will search the directories in order stopping at the first place it finds the specified modules. Use a semicolon to separate multiple directories. Save Article. Like Article.

Suppose you defined a module as below: Python3. Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics. Next How to setup Anaconda path to environment variable? It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. In the same time, when I print the content of sys. How can it be explained?

I had to create a virtualenv for a framework but I don't think I'm using it right now so it's probably not related but I'm not confortable with that concept so maybe I miss something. Also I've tried to modify. For sys. If it's not an environment variable but just a shell variable, it will not be visible by the python interpreter.

You turn it into an environment variable by exporting it after setting its value, or at the same time, as in. Sign up to join this community. Please use ide. Load Comments. What's New. Most popular in Python. More related articles in Python. We use cookies to ensure you have the best browsing experience on our website. Start Your Coding Journey Now!