[Python-Dev] walrus operator and expression

2022年3月28日 15:49:39 -0700

In the following bit of code:
 while s := input.read(MAXBINSIZE):
 while len(s) < MAXBINSIZE and ns := input.read(MAXBINSIZE-len(s)):
 s += ns
 line = binascii.b2a_base64(s)
 output.write(line)
I'm getting this error on the second line:
 cannot use assignment expressions with expression
Can somebody explain why that isn't working?
Many thanks.
--
~Ethan~
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