Mikhail Tarabrikov

Problem A script started with a Docker or Docker Compose interpreter in PyCharm opens a browser or another GUI application. No window appears on the host, and manual interaction with the page is no...

Question How can I configure Black to run automatically on save in PyCharm 2026.2? Answer Starting from PyCharm 2026.2, the integration for Black has changed and its settings have been moved to a c...

Background/Situation PyCharm 2026.2 rebuilt the integration with external Python tools (Black, Ruff, mypy, Pyright). The dedicated Settings | Tools | Black page from 2026.1, including its "On save"...

Problem Running a Python script that uses matplotlib in PyCharm completes without errors, but no plot is shown: no separate plot window opens and nothing appears inside the IDE. fig.savefig() calls...

Problem After updating PyCharm or its plugins, Behave/BDD support breaks with one or more of the following symptoms: Behave run configurations appear as "Unknown" or corrupted, and the Behave run ...

Question When should antivirus or other security software be checked as a possible cause of an IDE problem? Answer Real-time scanning intercepts file and process operations. During indexing, builds...

Question How to make Selenium tests written in Python start Microsoft Edge with a specific browser profile instead of a temporary one? Answer By default, Edge WebDriver starts Microsoft Edge with a...

Problem The MicroPython plugin cannot be installed in PyCharm 2024.3 or later, and existing installations no longer receive updates. Plugin features (REPL, file upload, device detection) stop worki...

Background Until 2025, PyCharm was distributed as two separate products: the free, open-source PyCharm Community Edition and the paid PyCharm Professional Edition. Starting with the 2025.1 release,...

Symptoms Starting a Jupyter notebook in PyCharm on Windows fails with the notification "Jupyter server process exited with code 1". The traceback ends with an SSL error raised while Python loads ce...