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  1. # your code goes here
  2. df['1/2 ID'] = map(lambda x: x.upper(), df['1/2 ID'])
Runtime error #stdin #stdout #stderr 0s 23352KB
stdin
Standard input is empty
stdout
Standard output is empty
stderr
Traceback (most recent call last):
  File "prog.py", line 2, in <module>
NameError: name 'df' is not defined