Show charts

Permanently deleted user

创建于 2014年09月21日 09:37

I am trying to have PyCharm show my graphics, but when I run this script nothing appears on the screen.

from pylab import *

def main():
    ion()
    t = arange(0.0, 2.0, 0.01)
    s = sin(2*pi*t)
    plot(t, s)

    xlabel('time (s)')
    ylabel('voltage (mV)')
    title('About as simple as it gets, folks')
    grid(True)
    show()

I am using Python 2.7.6, Pycharm 3.4 and Windows 7 x64.

---
D:\Python27\python.exe "D:/sletmig/python tests/pandas/chart.py"

Process finished with exit code 0
----

Warning: I am new to Python!

2 条评论

Permanently deleted user

创建于 2014年09月23日 18:17

Is what you posted the entirety of your code? If so, you're not actually calling the main() function.

Permanently deleted user

创建于 2014年09月24日 14:33

To add to what Preston said, if you are just executing this .py file, you run it like:

Code

if __name__ == "__main__":
    main()

and have it not indented. This bit of code only gets run if the file is run on itself, and not if it's imported from something else, as Python doesn't look for a main function like other languages.

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