Python: Determine whether variable is defined or not
Python Basic: Exercise-121 with Solution
Write a Python program to determine if a variable is defined or not.
Sample Solution:
Python Code:
# Try to execute a block of code.
try:
x = 1
except NameError:
print("Variable is not defined....!")
else:
print("Variable is defined.")
# Try to execute another block of code that references an undefined variable.
try:
y
except NameError:
print("Variable is not defined....!")
else:
print("Variable is defined.")
Sample Output:
Variable is defined. Variable is not defined....!
Flowchart:
Python Code Editor:
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