How to change a list of true/false strings to a list of True/false bools that can be used in a function - python

Question

I've collected a list of True or false items from a file and converted them into a list of strings:

status = ['True', 'True', 'True', 'True', 'True', 'True', 'True', 'True', 'False']

But I need to input these into a function that only accepts the boolean value of each, but this makes all these strings all be true due to actually having a value inside the string.

In short, here is what I need to convert to:

status = [True, True, True, True, True, True, True, True, False]

So I've tried a few different loop structures as such:

for v in status:
    if v == "True":
        v = True
    if v == "False":
        v = False

However this still gives back the strings in the list, or I've had the list values be deleted. Thanks for any help everybody.

`booleans = [item=='True' for item in status]` – Thierry Lathuille May 12 '20 at 22:01 — Thierry Lathuille, May 12 '20 at 22:01
```status = list(map(lambda x: x=='True', status))``` – RMPR May 12 '20 at 22:06 — RMPR, May 12 '20 at 22:06

score 2 · Accepted Answer · answered May 12 '20 at 22:04

You loop does not actually store the values back to the list. You need to store them:

booleans = []

for v in status:
    if v == "True":
        booleans.append(True)
    else:
        booleans.append(False)

status = booleans

Or in one line:

status = [item == "True" for item in status]

score 0 · Answer 2 · answered May 12 '20 at 22:04

0

One liner:

status = list(map(lambda x: x=='True', status))

answered May 12 '20 at 22:04

RMPR

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How to change a list of true/false strings to a list of True/false bools that can be used in a function - python

2 Answers2