问题
I observed that on a new project the Run option is disabled and I expected to be able to run a script without having to manually add a configuration for it.
回答1:
You can't run without a configuration, however temporary configuration can be created automatically if you use Run context menu option in the script editor.
回答2:
If you're creating a project from existing source: and If the existing source directory contains a lot of data/files:
- the Run option (and others, assumably) are disabled until PyCharm is finished indexing the contents in the project. You'll see a progress bar in the lower-right-hand corner.
You can speed this up by right-clicking on folders and selecting "Mark directory as..." -> "Excluded" if they aren't to be indexed.
回答3:
Right click inside your main file & then you get Run option!
回答4:
If the project folder contains a lot of files then the indexing process can take a long time. So you might need to wait before the Run button appears.
回答5:
Select drop down menu to the left of the run button at the top right, select Edit configurations, expand defaults on the left, select whatever you were working on (if python, select python). Then click OK. Dialogue will close. Make sure the file that you want to run is on top. Hit ctrl+shift+F10 to run. The run button should be enabled again.
回答6:
I solved it just by right clicking on the .py file and clicking 'run'. After this the run button appeared enabled!
回答7:
It is possible that when you have newly setup your pycharm environment, it starts to index the scripts. You will see something like Indexing... at the bottom of the window. Once it is complete you can right click and select Run.
来源：https://stackoverflow.com/questions/8364483/why-is-the-run-option-disabled-on-pycharm