HOW TO use Pycharm to debug python script?

Question

I'm trying to use pycharm. I can write code and run it. However, I do not know how to to debug the code. When I click the debug button, I get something similar to the below image:

Is there any special configuration needed for debugging in pycharm? Here is my configuration:

Solution 1

Take a look at Run -> Edit Configuration dialog where you should click on Add New Configuration ([+] icon at the left top corner). Then you need to choose project type (probably Python in your case), specify your script (.py) file, parameters, Python interpreter to use etc. Once configuration is selected, you should be able to just run your application in debugger.

Refer to Debugging section in on-line help for more information.

HelloWorld code:

def main():
    print "Hello World"

if __name__ == "__main__":
    main()

Solution 2

I'd like to illustrate how to set parameters, as it took me a while to do this right:

Find the drop-down menu next to the "Run" button:

Choose the file you want to configure, then click "Edit Configurations":

Add script parameters:

Comments

[hakunami]

I did what you said but still can't debug. I update this question with more information. Please help me.

[BluesRockAddict]

Try creating a simple HelloWorld project with single main.py file. Use the sample code from my answer and put the breakpoint on the second line (print "Hello World"). Create debug configuration for it as type Python and try running it in debugger, you should see debugger stopping at the breakpoint. I just tried it in PyCharm 2.5 and it work fine.

[hakunami]

I can debug this helloworld. Actually I put my python file into a new project and every thing works fine. weird?

[Kouichi C. Nakamura]

Cheers. Looks like we can put multiple variables into the Script parameters box with a space as a delimiter and these values will be passed to sys.argv when you debug or run the script.

[Stefan Falk]

Any idea how to solve this ?

[Stefan Falk]

Could you take a look at this?