Python formatting string invalid syntax

Question

In python 3.7, I have this very simple script. Why is this throwing a invalid syntax error?

datestr = '2020-06-10'
print(f"C:/folder/{datestr.replace("-", "_")}/temp.csv")


 File "<ipython-input-38-95d22e47df04>", line 2
    print(f"C:/folder/{datestr.replace("-", "_")}/temp.csv")
                                             ^
SyntaxError: invalid syntax

print("C://folder//" + str(datestr).replace("-", "_") + "//temp.csv") why is your code inside a string??? Your code won't work inside a string. — High-Octane
– High-Octane, Commented Jun 10, 2020 at 22:48
@High-Octane It is an f-string, so this will work once the problem with the string delimiters is fixed. — Matthias
– Matthias, Commented Jun 10, 2020 at 23:07

Parakiwi · Accepted Answer · 2020-06-10 22:35:59Z

3

You are trying to use " for different purposes in the same string. You can interchange it with ' to stop any confusion between string operations and terminating a string:

datestr = '2020-06-10'
print(f"C:/folder/{datestr.replace('-', '_')}/temp.csv")

Hope this helps!

answered Jun 10, 2020 at 22:35

Parakiwi

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