![]() ![]() If numpy is installed you will get a message like this. They type the following and press ‘Enter’. If you are using an Anaconda Python distribution you can check for a numpy installation using the conda command. If you have both Python2 and Python3 installed you will need to replace python with python3 when referencing the Python3 installation. If numpy is not installed you will see a message like this. Required-by: tifffile, tables, statsmodels, seaborn, scipy, scikit-learn, scikit-image, PyWavelets, pyerfa, patsy, pandas, numexpr, numba, mkl-random, mkl-fft, matplotlib, imageio, imagecodecs, h5py, Bottleneck, bokeh, bkcharts, astropy Location: c:\users\konrad\anaconda3\lib\site-packages Summary: NumPy is the fundamental package for array computing with Python. If numpy is installed you will see a message like this: Name: numpy Then type the following command in the command prompt and press ‘Enter’. To do so, make sure your are not in an interactive Python session. You can also check your numpy installation with pip, a Python package manager/installer. To exit the interactive Python session simply type quit() and press enter. ModuleNotFoundError: No module named 'numpy' If you get an error message like the one below it means that numpy is not installed or that it was improperly installed. If there is no error message then it means numpy is installed. To check if numpy is installed just try to import it with the following line of code. The > indicates that the code you type will be executed by the Python interpreter. Type "help", "copyright", "credits" or "license" for more information. ![]() You should now see something that shows information about the Python distribution you are using, followed by three greater-than signs. You do this by opening up a command prompt/terminal, typing python, and pressing ‘Enter’. The first way to check if numpy is installed is to start an interactive Python session. ![]() Note, that some of these methods also tell you the numpy version. Here are three ways to check if numpy, or any other Python package, is installed. This article will show you multiple ways to determine your numpy version and installation status. In many instances, it is necessary to determine if numpy is installed and which numpy version is installed. The numpy Python module is widely used for many different analyses and as a dependency for many other Python packages. ![]()
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