Many users choose to disable the default behavior of using Enter to accept completions, to avoid accepting a completion when they intended to start a new line. You can do this by going to Settings → Editor: Accept Suggestion On Enter and setting it to off.

Many users choose to disable the default behavior of using Enter to accept completions, to avoid accepting a completion when they intended to start a new line. You can do this by going to Settings → Editor: Accept Suggestion On Enter and setting it to off.

How I can do this in PyCharm?

I have exactly the same problem and it makes TabNine borderline unusable. Here is what's happening:

IntelliJ does not offer a way to disable the Enter key for completing suggestions. It's not a problem when you use the native autocomplete, because they don't offer any suggestions when, for example, typing a comma. IntelliJ only offers suggestions when you are actually typing letters, in which case you are aware of the suggestions popping up.

TabNine on the other hand also offers suggestions when typing symbols like ,. So when you want to jump to the end of a line, enter a comma and quickly press Enter to get to the new line, you end up auto-completing whatever was suggested. It's extremely annoying and I am baffled that so few people are commenting on this issue. TabNine needs to offer a config that does not autocomplete after specific keys if IntelliJ does not offer that functionality (they should, too).

I attached a short GIF of me trying to add a parameter to a function by adding a comma and pressing Enter to get to the new line. TabNine blocks it and my Enter ends up autocompleting. I have to press Space, Back and then Enter.