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Homework #1

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Homework #1

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83 changes: 75 additions & 8 deletions calculator.py
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Original file line number Diff line number Diff line change
Expand Up @@ -45,12 +45,39 @@

def add(*args):
""" Returns a STRING with the sum of the arguments """

try:
addi = sum(map(int, args))
except ValueError:
addi = 'Please put some numbers'
# TODO: Fill sum with the correct value, based on the
# args provided.
sum = "0"
# args provided
return addi


def substract(*args):
try:
diff = int(args[0]) - int(args[1])
except (ValueError, TypeError):
diff = 'Please put some numbers'
return diff


def multiply(*args):
try:
mult = int(args[0]) * int(args[1])
except (ValueError, TypeError):
mult = 'Please put some numbers'
return mult

return sum

def divide(*args):
try:
div = int(args[0]) / int(args[1])
except (ValueError, TypeError):
div = 'Please put some numbers'
except ZeroDivisionError:
div = 'Division per 0 is impossible'
return div

# TODO: Add functions for handling more arithmetic operations.

Expand All @@ -64,11 +91,20 @@ def resolve_path(path):
# examples provide the correct *syntax*, but you should
# determine the actual values of func and args using the
# path.
func = add
args = ['25', '32']
args = path.strip("/").split("/")

func_name = args.pop(0)

func = {
"add": add,
"substract": substract,
"multiply": multiply,
"divide": divide
}.get(func_name)

return func, args


def application(environ, start_response):
# TODO: Your application code from the book database
# work here as well! Remember that your application must
Expand All @@ -77,9 +113,40 @@ def application(environ, start_response):
#
# TODO (bonus): Add error handling for a user attempting
# to divide by zero.
pass
headers = [('Content-type', 'text/html')]
try:
# print(environ.keys())
path = environ.get('PATH_INFO', None)
print('path {}'.format(path))
if path is None:
print('None')
raise NameError
elif path == '/':
print('test')
status = "200 OK"
body = "<html>Here's how to use this page...</html>"
func, args = resolve_path(path)
body = func(*args)
print(args)
print(body)
status = "200 OK"
except NameError:
status = "404 Not Found"
body = "<h1>Not Found</h1>"
'''
except Exception:
status = "500 Internal Server Error"
body = "<h1> Internal Server Error</h1>"
'''
finally:
headers.append(('Content-length', str(len(str(body)))))
start_response(status, headers)

return [str(body).encode('utf8')]

if __name__ == '__main__':
# TODO: Insert the same boilerplate wsgiref simple
# server creation that you used in the book database.
pass
from wsgiref.simple_server import make_server
srv = make_server('localhost', 8080, application)
srv.serve_forever()