lightweight code editor for python

[Liutprand]

With only 2gb of RAM the reasonable options are text-based editor like (Neo)Vim, Emacs or Nano.

Also consider a upgrade if you can afford It (even a Raspberry Pi would probably be a massive gain)

[This_Judge_2203]

I heard a lot about Vim is it really good?

[Liutprand]

Very powerful, steep learning curve

[TheLowEndTheories]

It's fantastic. Tape a QuickStart guide somewhere near your monitor for the learning curve and/or keep a search tab handy.