Control Execution

04_Conditional_Execution/14_try_except.py

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+try:
+    x = input("Enter number:")
+    x = int(x) + 1
+    print(x)
+except:
+    print("Invalid Input")
+
+"""
+Output 1
+Enter number:pp\
+Invalid Input
+"""
+
+"""
+Output 2
+Enter number:5
+6
+"""

04_Conditional_Execution/_07_if_else.py

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+"""
+if condition:
+    # Code to be implemented later
+    pass   # pass-->is a null operator statement.It doesn't do anything when executed and acts as a placeholder where syntactically some code is required but you don't want to perform ant action.Helps interpreter to pass over without raising any error
+"""
+
+x = 10
+if x > 5:
+    print("x is greater than 5")
+
+# The code execution exits the if block after the print statement
+print("This line is executed after the if block.")
+print("Program continues here...")
+
+"""
+Output
+x is greater than 5
+This line is executed after the if block.
+Program continues here...
+"""

04_Conditional_Execution/_08_alternate_execution_example.py

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+# Get user input
+num = int(input("Enter a number: "))
+
+# Check if the number is even or odd
+if num % 2 == 0:
+    print(num, "is even")
+else:
+    print(num, "is odd")
+
+# Code continues after the if-else block
+print("Program continues...")
+
+
+"""
+Output 1
+Enter a number: 4
+4 is even
+Program continues...
+"""
+
+"""
+Output 2
+Enter a number: 3
+3 is odd
+Program continues...
+"""

04_Conditional_Execution/_09_chained_conditionals__1.py

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+# Chained Conditionals
+
+# Given shirt color
+shirt_color = "blue"
+
+# Chained conditionals to determine who gets the shirt
+
+if shirt_color == "red":
+    print("Give the shirt to John")
+elif shirt_color == "green":
+    print("Give the shirt to Klara")
+elif shirt_color == "yellow":
+    print("Give the shirt to Kathy")
+else:
+    print("Give the shirt back")
+
+"""
+Output
+Give the shirt back
+"""

04_Conditional_Execution/_10_chained_conditionals__2.py

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+# Code tempelete for chained conditionals
+
+x = 5
+if x < 0:
+    print("x is negative")
+elif x == 0:
+    print("x is zero")
+else:
+    print("x is positve")
+
+"""
+Output
+x is positve
+"""

04_Conditional_Execution/_11_nested_conditionals.py

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+# Nested Conditionals
+
+# Student's score
+score = 32
+
+# Determine the grade based on the score
+if score >= 90:
+    grade = "A"
+    if score >= 95:
+        feedback = "Excellent! You're at the top of the class."
+    else:
+        feedback = "Great job!Keep up the good work."
+
+elif score >= 80:
+    grade = "B"
+    if score >= 85:
+        feedback = "Well done!You're doing great."
+    else:
+        feedback = "Good Effort!You're close to the next grade"
+elif score >= 70:
+    grade = "C"
+    if score > 75:
+        feedback = "Not bad,but there's room for improvement"
+    else:
+        feedback = "You're almost there! Keep pushing yourself"
+else:
+    grade = "D"
+    feedback = "You need to work harder to improve your grade"
+
+print("Student's score:", score)
+print("Student's grade:", grade)
+print("Feedback:", feedback)

04_Conditional_Execution/_12_try_catch_or_try_except.py

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+# Try Catch
+
+try:
+    numerator = int(input("Enter the numerator: "))
+    denominator = int(input("Enter the denominator: "))
+    result = numerator / denominator
+    print("Result:", result)
+except ZeroDivisionError as zero_division_error:
+    print("Error", zero_division_error)
+
+
+"""
+Output 1
+Enter the numerator: 7
+Enter the denominator: 7
+Result: 1.0
+"""
+
+"""
+Output 2
+Enter the numerator: 6
+Enter the denominator: 0
+Error division by zero
+"""
+
+"""
+Built-in Exceptions
+
+SyntaxError: Raised when the Python interpreter encounters a syntax error in the code. 
+
+IndentationError: Raised when there are incorrect indentation levels in the code.
+
+TypeError: Raised when an operation or function is applied to an object of inappropriate type.
+
+ValueError: Raised when a built-in operation or function receives an argument of the correct type but with an invalid value.
+
+ZeroDivisionError: Raised when division or modulo operation is performed with a divisor of zero.
+
+IndexError: Raised when trying to access an index that does not exist in a sequence.
+
+KeyError: Raised when trying to access a key that does not exist in a dictionary.
+
+FileNotFoundError: Raised when trying to open or access a file that does not exist.
+
+NameError: Raised when a local or global name is not found.
+
+"""

04_Conditional_Execution/_13_try_catch_or_try_except.py

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+try:
+    if True:
+    print("This line has an indentation error.")
+except IndentationError as e:
+    print("An IndentationError occurred",e)    
+
+
+"""
+Output
+File "c:\Users\HP\Desktop\Codes\Python_Code_Snippets\04_Conditional_Execution\_13_try_catch_or_try_except.py", line 3
+    print("This line has an indentation error.")
+    ^
+IndentationError: expected an indented block
+
+"""