if else in a list comprehension
Do-something if <condition>, else do-something else.
list-comprehension
if/else in a list comprehension
You can totally do that. It’s just an ordering issue: In general, And, for list comprehensions with if conditions only, Note that this actually uses a different language construct, a conditional expression, which itself is not part of the comprehension syntax, while the if after the for…in is part of list comprehensions and used to filter elements from the source iterable. Conditional expressions can be … Read more
if/else in a list comprehension
You can totally do that. It’s just an ordering issue: In general, And, for list comprehensions with if conditions only, Note that this actually uses a different language construct, a conditional expression, which itself is not part of the comprehension syntax, while the if after the for…in is part of list comprehensions and used to … Read more
Python Dictionary Comprehension
There are dictionary comprehensions in Python 2.7+, but they don’t work quite the way you’re trying. Like a list comprehension, they create a new dictionary; you can’t use them to add keys to an existing dictionary. Also, you have to specify the keys and values, although of course you can specify a dummy value if … Read more