How can I use str.join() instead of "+=" to join a list of strings with separator?
Question:
I have some code which is essentially this:
data = ["some", "data", "lots", "of", "strings"]
separator = "."
output_string = ""
for datum in data:
output_string += datum + separator
How can I do this with str.join()
or a similar built-in function?
Answers:
output_string = ".".join(data)
if you have integers or non-strings in data, then
output_string = ".".join( str(x) for x in data )
If the separator is a variable you can just use variable.join(iterable)
:
data = ["some", "data", "lots", "of", "strings"]
separator = "."
print(separator.join(data))
some.data.lots.of.strings
I have some code which is essentially this:
data = ["some", "data", "lots", "of", "strings"]
separator = "."
output_string = ""
for datum in data:
output_string += datum + separator
How can I do this with str.join()
or a similar built-in function?
output_string = ".".join(data)
if you have integers or non-strings in data, then
output_string = ".".join( str(x) for x in data )
If the separator is a variable you can just use variable.join(iterable)
:
data = ["some", "data", "lots", "of", "strings"]
separator = "."
print(separator.join(data))
some.data.lots.of.strings