Python import error module not found error no module named networkx
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when you encounter a python `modulenotfounderror: no module named 'networkx'` error, it means that the `networkx` module is not installed in your python environment. `networkx` is a popular python package for working with complex networks and graphs.
here's a step-by-step tutorial on how to resolve this error by installing the `networkx` module using pip:
1. **check if `networkx` is installed**: first, check if the `networkx` module is already installed in your python environment by running the following command in your terminal or command prompt:
if the module is not installed, you will see a message like `package 'networkx' not found`.
2. **install `networkx` using pip**: to install the `networkx` module, run the following command in your terminal or command prompt:
this command will download and install the `networkx` package from the python package index (pypi).
3. **verify installation**: after the installation is complete, you can verify that the `networkx` module is installed by running the following python code in a python interpreter or script:
if the installation was successful, you should see the version of the `networkx` module printed without any errors.
4. **code example**:
here is a simple code example that demonstrates importing and using the `networkx` module to create a graph:
this code creates a simple graph using `networkx` and visualizes it using `matplotlib`.
by following these steps and installing the `networkx` module, you should be able to resolve the `modulenotfounderror: no module named 'networkx'` error and start using the `networkx` package in your python projects.
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