Increase output buffer when running or debugging in PyCharm

Yes, you can edit the idea.cycle.buffer.size setting within the bin/idea.properties file within the installation folder (or within the Application package on OS X).

Setting:

idea.cycle.buffer.size=disabled

disables the cyclic buffer.

See https://www.jetbrains.com/idea/help/file-idea-properties.html for details.

For PyCharm Community 2016.3 (Mac) you can increase the size of console buffer in the application Preference: