Python check if a given key already exists in a dictionary
Example 1:
## # Python's program to check if a given key already exists in a dictionary x = {'z': 10, 'l': 50, 'c': 74, 'm': 12, 'f': 44, 'g': 19} print(x) if 'z' in x.keys(): print("True") else: print("False") # Using ternary operator: msg = "True" if 'z' in x else "False" print(msg)
Sample output of above program.
C:\programs\dictionary>pep8 --first example1.py
C:\programs\dictionary>python example1.py
{'m': 12, 'g': 19, 'c': 74, 'l': 50, 'z': 10, 'f': 44}
True
True
C:\programs\dictionary>
C:\programs\dictionary>python example1.py
{'m': 12, 'g': 19, 'c': 74, 'l': 50, 'z': 10, 'f': 44}
True
True
C:\programs\dictionary>
2018-05-29T07:05:30+05:30
2018-05-29T07:05:30+05:30
Amit Arora
Amit Arora
Python Programming Tutorial
Python
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