如何在 PowerBI 中运行 Python 脚本？

Question

I am new to Python. I am trying to create a Bar Chart in Power BI using Python but the script does not seem to work. The code is below:

pip install pandas
pip install matplotlib
import matplotlib.pyplot as plt
plt.plot(dataset.Letter,dataset.Number)
plt.show()

Please find attached the file:

https://www.mediafire.com/file/f0bwt9cp4ha1sfb/Example.pbix/file

enter image description here

Answer 1

First, you should not be required to run pip install every time you run your script. You should only have to use pip install commands when installing a library for the first time. This might require you ensuring that you have the correct libraries located on your computer. However, I do not know what your error is since I do not have your error code.

Also, be sure to specify what type of plot you wish to produce from matplotlob.

Try:

    import matplotlib.pyplot as plt
    dataset.plot('bar', dataset.Letter, dataset.Number)
    plt.show()

Answer 2

After installing only one (1) initial time pip install pandas and pip install matplotlib , you only need to write in your code:

import matplotlib.pyplot as plt
dataset.plot('bar', dataset.Letter, dataset.Number)
plt.show()

import is for setting up the library and you must always use it in your code, while pip install pandas and pip install matplotlib only need to be installed once at the beginning.

Answer 3

Here is the code that I wrote:

import matplotlib.pyplot as plt
dataset.plot('bar', dataset.Letter, dataset.Number)
plt.show()

The visual still does not seem to work. Please find an image here:

I'm not too sure why it is like this. I have also attached an image of the Python scripts folder: