Error in opening of file. Python -


i trying open file , met problem:

typeerror: coercing unicode: need string or buffer, nonetype found

here code example:

a = open(fname, "rb").read(255)

whats wrong code?

fname none, not string:

>>> open(none) traceback (most recent call last):   file "<stdin>", line 1, in <module> typeerror: coercing unicode: need string or buffer, nonetype found

you'll have fix how set fname or explicitly guard against being none.


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