I’m just getting into Python and I really like the terseness of the syntax. However, is there an easier way of writing an if–then–else statement so it fits on one line? For example: if count == N: count = 0 else: count = N + 1 Is there a simpler way of writing this? I … Read more
In a python source code I stumbled upon I’ve seen a small b before a string like in:
Can you add new statements (like print, raise, with) to Python’s syntax?
I have a class like the following: class User: def __init__(self): self.data = [] self.other_data = [] def doSomething(self, source): // if source = 'other_data' how to access self.other_data I want to pass a string for the source variable in doSomething and access the class member of the same name. I have tried getattr which … Read more
When an 'r' or 'R' prefix is present,
a character following a backslash is
included in the string without change,
and all backslashes are left in the
string. For example, the string
literal r"n" consists of two
characters: a backslash and a
lowercase 'n'. String quotes can be
escaped with a backslash, but the
backslash remains in the string; for
example, r""" is a valid string
literal consisting of two characters:
a backslash and a double quote; r""
is not a valid string literal (even a
raw string cannot end in an odd number
of backslashes). Specifically, a raw
string cannot end in a single
backslash (since the backslash would
escape the following quote character).
Note also that a single backslash
followed by a newline is interpreted
as those two characters as part of the
string, not as a line continuation.
When testing for membership, we can use:
I am curious why in Python a trailing comma in a list is valid syntax, and it seems that Python simply ignores it:
I have read the links below, but it doesn’t address my question.
Does Python have a ternary conditional operator? (the question is about condensing if-else statement to one line)
Is there a reference somewhere defining precisely when enclosing tuples with parentheses is or is not required?
I mostly use lambda functions but sometimes use nested functions that seem to provide the same behavior.