I need to delete these lists inside of list that contains the / symbol.

List for example:

X = [['a/','$1'], ["c","d"]]

so X[0] should be deleted. The actual list are much longer and contains more instances of this condition.

I tried use something like:

print([l for l in X if l.count("/") <1])

But if I understand correctly because the / is attached to another symbol he is not counted.

Should I convert this list of lists to string, separate the / from another character, and then use the count function, or there is better solution?

CodePudding user response：

One way to search "/" in each item in the sublists is to wrap a generator expression with any. Since you don't want sublists with "/" in it, the condition should be not any():

out = [lst for lst in X if not any('/' in x for x in lst)]

Output:

[['c', 'd']]

CodePudding user response：

The call to filter() applies that lambda function to every list in X and filters out list with '/'.

result = list(filter(lambda l: not any('/' in s for s in l), X))

CodePudding user response：

Given:

X = [['a/','$1'], ["c","d"]]

You can convert the sub lists to their repr string representations and detect the / in that string:

new_x=[sl for sl in X if not '/' in repr(sl)]

Or, you can use next:

new_x=[sl for sl in X if not next('/' in s for s in sl)]

Either:

>>> new_x
[['c', 'd']]