Difference between the use of double quote and quotes in python [duplicate]

Answer 1

Double quotes look distinctive. Single quotes look like single ticks. Apart from that ...

Answer 2

Not generally, you just have to be consistent within a given statement. E.g., don't do "foo'

For further reading, see here.

Answer 3

Short answer: almost no difference except stylistically.
Short blurb: If you don't want to escape the quote characters inside your string, use the other type. eg:

string1 = "He turned to me and said, \"Hello there\""

would be slightly more unsightly than saying

string2 = 'He turned to me and said, "Hello there"'

The same applies to single quotes/apostrophes.