python - Empty space check and string.split error -

i have following error when try split string 2 values.

error: builtins.valueerror: need more 1 value unpack

when debug, shows first if statement still true, when there no space in string. wondering why not going second if statement.

if ('' in line):             line=line.strip('\n')     code,number=line.split()     print(code,number) if '' not in line:     print('missing key') 

'' in anystring true because it's empty string. empty string going in every single possible string, empty set subset of every set. mean check ' ' single space character.

a better approach split string on whitespace , check length of list determine if have 2 items. example:

linesplit = line.split() if len(linesplit) == 2:     code, number = linesplit     print(code, number) else:     print('missing key') 

this method before leap (lbyl).

try:     code, number = line.split()     print(code, number) except valueerror:     print('missing key') 

and alternative method ask forgiveness rather permission (eafp).

by way, took out calls str.strip, because using str.split takes care of you.