exceptions

Author: johnhabere

3_exceptions-and-libs/exc1.py

@@ -0,0 +1,5 @@
+try:
+    x = int(input("Enter x: "))
+    print(f"You entered {x}")
+except ValueError:
+    print("Oops x isn't an Integer")

3_exceptions-and-libs/exc10.py

@@ -0,0 +1,19 @@
+
+class HttpException(Exception):
+    statusCode = None
+    message = None
+    def __init__(self):
+        super().__init__(f"Status Code: {self.statusCode}! Message: {self.message}")
+    
+class NotFoundError(HttpException):
+    statusCode = 404
+    message = "Server Not Found"
+
+class ServerError(HttpException):
+    statusCode = 500
+    message = "Server is down! We shall soon be vailable"
+    
+def raiseNotFoundError():
+    raise NotFoundError()
+
+raiseNotFoundError()

3_exceptions-and-libs/exc2.py

@@ -0,0 +1,6 @@
+try:
+    x = int(input("Enter x: ")) # x will not be created if it isn't any integer
+except ValueError:
+    print("Oops x isn't an Integer")
+else:
+    print(f"You entered {x}")

3_exceptions-and-libs/exc3.py

@@ -0,0 +1,8 @@
+while True:
+    try:
+        x = int(input("Enter x: ")) # x will not be created if it isn't any integer
+    except ValueError:
+        print("Oops x isn't an Integer")
+    else:
+        break
+print(f"You entered {x}")

3_exceptions-and-libs/exc4.py

@@ -0,0 +1,12 @@
+def main():
+    z = get_int()
+    print(f"You entered {z}")
+
+def get_int():
+    while True:
+        try:
+            return int(input("Enter x: ")) # x will not be created if it isn't an integer
+        except ValueError:
+            print("Oops x isn't an Integer")
+
+main()

3_exceptions-and-libs/exc5.py

@@ -0,0 +1,16 @@
+
+# try ... except .... else ... finally
+
+try:
+    nume = int(input("Enter the numerator: "))
+    denom = int(input("Enter the denominator: "))
+    quotient = nume/denom
+    print("Correct division")
+except ZeroDivisionError:
+    print("You can't divide by zero")
+except ValueError:
+    print("Only integers required")
+else:
+    print("Quotient =", quotient)
+finally:
+    print("I am always here")

3_exceptions-and-libs/exc6.py

@@ -0,0 +1,7 @@
+num1 = int(input("Num 1: "))
+num2 = int(input("Num 2: "))
+
+if num2 == 0:
+    raise ZeroDivisionError("No division by zero")
+else:
+    print("Quotient =",num1/num2)

3_exceptions-and-libs/exc7.py

@@ -0,0 +1,18 @@
+## Create your custom exceptions
+# - clean code
+# - documentation
+# - set yourself away from others
+
+class AgeErrorException(Exception): # inheritance
+    def __init__(self, value):
+        self.value = value
+
+try:
+    age = int(input("What is your age?:"))
+    if age < 0 or age >=80:
+        raise AgeErrorException("Out of range age")
+    print(f"You are {age} years OLD")
+except ValueError:
+    print("We accept only integers")
+except AgeErrorException as ageErr:
+    print(ageErr)

3_exceptions-and-libs/exc8.py

@@ -0,0 +1,14 @@
+## Create your custom exceptions
+# - clean code
+# - documentation
+# - set yourself away from others
+
+class AgeErrorException(Exception): # inheritance
+    def __init__(self, value, message="Age out of range"):
+        self.value = value
+        self.message = message
+        super().__init__(self.message)
+
+age = int(input("What is your age? "))
+if not 0 < age < 80:
+    raise AgeErrorException(age)

3_exceptions-and-libs/exc9.py

@@ -0,0 +1,28 @@
+class HallAllocationError(Exception):
+    pass
+
+class HomeDistanceError(Exception):
+    pass
+
+def checkHomeDist(distance):
+    maxDistance = 80
+    if distance < maxDistance:
+        raise HomeDistanceError("You can commute from home")
+    else:
+        print("You may be allocated a hall")
+
+def checkAge(age):
+    ageLimit = 30
+    if age > ageLimit:
+        raise HallAllocationError("You are too old to be allocated a hall")
+    else:
+        dist = int(input("Distance = "))
+        checkHomeDist(dist)
+    
+try:
+    age = int(input("What is your age?"))
+    checkAge(age)
+except HallAllocationError as haErr:
+    print(haErr)
+except HomeDistanceError as hoErr:
+    print(hoErr)

3_exceptions-and-libs/libs.py

@@ -0,0 +1,6 @@
+import sys
+
+try:
+    print("Hello there! I am", sys.argv[1])
+except IndexError:
+    print("No arguments supplied")

3_exceptions-and-libs/libs2.py

@@ -0,0 +1,10 @@
+import sys
+
+if len(sys.argv) < 3:
+    sys.exit("Not enough args")
+
+elif len(sys.argv) > 3:
+    print("A lot of args")
+    
+else:
+    print("Hello there! I am", sys.argv[1])

3_exceptions-and-libs/libs3.py

@@ -0,0 +1,7 @@
+import sys
+
+if len(sys.argv) < 3:
+    sys.exit("Not enough args")
+    
+for x in sys.argv[1:]:
+    print("Hello there!", x)