How to use 'if statement' with 'or' operator in python
how to use a colon
when to use a dash
when to use a semicolon examples
how to use in a sentence
when to use a colon in a sentence
when to use a semicolon in a list
when to use a comma
I have list that contains some value now i want to check it for empty string and Null values. So i am using below code for same but output is not coming correct. On checking for '' empty string it is giving output 'not nice' Its working fine for 'Null' value but not considering it for '' empty values. Any help would be appreciated.
y=['',''] if ('Null' or '') in y: print ('nice') else: print('not nice')
or evaluates two Boolean expressions. In your case, the statement in the bracket is evaluated first and then the
in is evaluated. This leads to the
if statement being interpreted as false. You do not need to use the brackets. Just do this:
if 'Null' in y or '' in y:
Now there's a Boolean expression on either side of the
or, so it will evaluate properly.
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try the below code.
y = ['', ''] if 'Null' in y or '' in y: print('nice') else: print('not nice')
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You can try something like below:
a = ["Hello","","World"] for words in a: if (words): print ("Nice") else: print("Not nice") Nice Not nice Nice
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Semicolons, Use a semicolon in place of a period to separate two sentences where the conjunction has been left out. Use a semicolon between independent clauses joined by a coordinating conjunction if the clauses are already punctuated with commas or if the clauses are lengthy. Some people write with a word processor, tablet, or a even a phone; but others, for different reasons, choose to write with a pen or pencil. Avoid using a comma when a semicolon is needed:
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- Does this answer your question? How to check if one of the following items is in a list?
'Null' or ''is evaluated to
'Null'. so your code is equivalent to
'Null' in y
- Thanks. I have tried this but showing error : TypeError: argument of type 'NoneType' is not iterable
- The question is about Python-3.x. Your code is for Python-2.7.
- Hey, just replace print "Nice" with print("Nice")..Rest everything will remain same. a = ["Hello","","World"] for words in a: if (words): print ("Nice") else: print("Not nice")
- @DYZ: Can you please check and confirm.