如何大写列表中字符串的某些索引？

Question

I have a list containing multiple stings. The strings all start with a "*" and then a "[" with a space in between. Like this:

* [context......

Now i would like to capitalize "c". In other words, i would like to capitalize the first letter of all the strings. But since i use symbols first. the Capitalize() function wont work.

What i have tried is to capitalize the index like this:

list = [i[3].capitalize() for i in list]

The output of this, is just the capitalized letters. And not the rest of the string.

Answer 1

The easiest way is to use .title() which ignores non-alphabetical characters:

>>> my_list = ['* [foo]', '* [bar]']
>>> map(lambda s: s.title(), my_list)
['* [Foo]', '* [Bar]']

or using a list comprehension:

>>> [s.title() for s in my_list]
['* [Foo]', '* [Bar]']

Answer 2

If they all start that way, then I think this would do what you want.

list_ = [i[:3] + i[3:].capitalize() for i in list_]

Note that you shouldn't use the built in keyword list as a variable name (it covers over its purpose in the code).

Answer 3

TRY:-

list1 = [ "* [context......", "* [context1......" ]

for x in list1:

    print(x[:3] + x[3].capitalize() + x[4:])

OUTPUT:-

* [Context......
* [Context1......

Answer 4

Here's an example using upper() instead of capitalize. Reference from here

test = ['* [context......', '* [bontext......', '* [zontext......']

test = [i[:3] + i[3:4].upper() + i[4:] for i in test]