I installed pennylane and networkx regularly on google colab (O.S. windows) and when I import pennylane I get this error: ImportError: cannot import name '_dispatch' from 'networkx.classes' (/usr/local/lib/python3.10/dist-packages/networkx/classes/__init_

PennyLane Help
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Hi @Eleonora_Panini,

Thank you for asking this question!

To install PennyLane locally it’s strongly recommended that you create a new virtual environment to prevent you from having any installation issues. You can create a virtual environment with Conda and install PennyLane as follows:

  1. Install Anaconda following the instructions here.
  2. Open your terminal (mac) or command line (Windows).
  3. Create a new Conda environment with: conda create --name <name_of_your_environment> python=3.10
  4. Activate the environment with: conda activate <name_of_your_environment>
  5. Install PennyLane with: python -m pip install pennylane
  6. Install other useful packages with: python -m pip install pennylane jupyter matplotlib

Note that you will be installing 3 packages here: PennyLane, Jupyter, and Matplotlib. You don’t necessarily need the three of them but they tend to be useful. Also, note that where it says <name_of_your_environment> you can choose any name that you want. After this you can write jupyter notebook in your terminal/command line and you will be ready to create programs using PennyLane.

You can also watch the video here for detailed PennyLane installation instructions.

If you have trouble installing PennyLane locally, you can use Google Colab and open a new notebook there. Run the following at the beginning of your notebook (including the exclamation mark): !pip install pennylane

If you’re still facing issues please post your code and your full error traceback.

I hope this helps you get started!

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