how to check if my strings are not empty in python

Question

if Region != " " & State != " " & Sku != " ":

TypeError: unsupported operand type(s) for &: 'str' and 'str'

for single string I got it, but for multiple it shows above error

Thanks in advance

the issue isnt with the individual conditions, but with how you're joining them together. python uses `and` for logical AND. Also, parenthesis makes conditions clear. — Paritosh Singh, Mar 14 '19 at 10:51
FWIW, these strings are not empty. They contain a single whitespace. An empty string is `''` or `""`. — DeepSpace, Mar 14 '19 at 10:52
In any case check https://stackoverflow.com/questions/8556206/what-does-mean-in-python that will help you understand how the operator is used — Xantium, Mar 14 '19 at 10:54

score 3 · Answer 1 · answered Mar 14 '19 at 10:55

3

As DeepSpace points out, your strings are not empty. Consider:

if Region.strip() != "" and State.strip() != "" and Sku.strip() != "":

Also, you may want to use lower case variable names, as it is considered good practice.

answered Mar 14 '19 at 10:55

VdG

score 2 · Answer 2 · answered Mar 14 '19 at 10:51

2

Use and instead of &.

  if Region != " " and State != " " and Sku != " ":

answered Mar 14 '19 at 10:51

Usman

score -1 · Accepted Answer · answered Mar 14 '19 at 10:57

-1

In python, you can evaluate strings as a boolean. It returns True if its no empty and it returns True if its empty. So you have to code this:

if not Region and not State and not Sku:

answered Mar 14 '19 at 10:57

OP apparently needs to check for a single whitespace, not the empty string – DeepSpace Mar 14 '19 at 10:58
Or it is just mistake. Hard to say, better to be specific. – Karls Mar 14 '19 at 11:04

3 Answers3