Making a single-line 'if' statement without an 'else' in Python 3 [duplicate]

Question

Is there any way to do this in a single line, but without using a 'None'?:

folders = ['Project 1', 'Project 2']
files = os.listdir('/home/user/Documents/Python')
for i in files:
    files.remove(i) if i in folders else None

Could one 'skip' the 'else' statement?

Thanks in advance.

You should do files = [_ for _ in files if _ not in folders], the Python style. — zyxue
– zyxue, Commented May 25, 2017 at 17:47
@zyxue don't use _ unless it is a throwaway variable, which it is not. — juanpa.arrivillaga
– juanpa.arrivillaga, Commented May 25, 2017 at 18:04
In this case, it is a throwaway as it won't be needed out of the list comprehension, no? — zyxue
– zyxue, Commented May 25, 2017 at 18:05

zyxue · Accepted Answer · 2017-05-25 17:43:17Z

12

if i in files: files.remove(i)

answered May 25, 2017 at 17:43

zyxue

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1 Comment

Note: but this isn't the recommended style. Better split into two lines.