PEP-8 recommends you indent lines to the opening parentheses if you put anything on the first line, so it should either be indenting to the opening bracket: urlpatterns = patterns(”, url(r’^$’, listing, name=”investment-listing”)) or not putting any arguments on the starting line, then indenting to a uniform level: urlpatterns = patterns( ”, url(r’^$’, listing, name=”investment-listing”), … Read more
Here is screenshot of my Pycharm. Required settings is in following path: File -> Settings -> Editor -> Code Style -> General: Right margin (columns)
Well, I am a bit curious, so I just tested the three myself right after asking the question 😉 Ok, this is not a very serious review, but here is what I can say: I tried the tools with the default settings (it’s important because you can pretty much choose your check rules) on the … Read more
Module importing is quite fast, but not instant. This means that: Putting the imports at the top of the module is fine, because it’s a trivial cost that’s only paid once. Putting the imports within a function will cause calls to that function to take longer. So if you care about efficiency, put the imports … Read more
There’s no performance difference, as they compile to the same bytecode: >>> import dis >>> dis.dis(“not x is None”) 1 0 LOAD_NAME 0 (x) 2 LOAD_CONST 0 (None) 4 COMPARE_OP 9 (is not) 6 RETURN_VALUE >>> dis.dis(“x is not None”) 1 0 LOAD_NAME 0 (x) 2 LOAD_CONST 0 (None) 4 COMPARE_OP 9 (is not) 6 … Read more