Python: using 4 spaces for indentation. Why?

conventionsindentationpep8python

While coding python I'm using only 2 spaces to indent, sure PEP-8 really recommend to have 4 spaces, but historically for me it's unusual.

So, can anyone convince me to use 4 spaces instead of 2? What pros and cons?

P.S. And finally, what's easy way to convert all existing codebase from 2 spaces to 4 spaces?


P.P.S. PEP-8 Also srictly recommend not using tabs for indention. read here


So, to summarize:

Pros:

  • Have more space to arrange when wraping string more than 80 lines long.
  • Can copy code from snippets and it just works.

Cons:

  • With deeper level of nested statements you have less space for actual code.

Thanks.

Best Solution

Everyone else uses 4 spaces. That is the only reason to use 4 spaces that I've come across and accepted. In my heart, I still want to use tabs (1 indent character per indent, makes sense, no? Separate indent from other whitespace. I don't care that tabs can be displayed as different widths, that makes no syntactic difference. The worst that can happen is that some of the comments don't line up. The horror!) but I've accepted that since the python community as a whole uses 4 spaces, I use 4 spaces. This way, I can assemble code from snippets others have written, and it all works.