Iteration over strings

[Robert Dailey]

Hi,

I have the following code:

str = "C:/somepath/folder/file.txt"

for char in str:
    if char == "\\":
        char = "/"

The above doesn't modify the variable 'str' directly. I'm still pretty new
to Python so if someone could explain to me why this isn't working and what
I can do to achieve the same effect I would greatly appreciate it.
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