+
+"""
+ return page
def add(*args):
@@ -47,12 +102,42 @@ def add(*args):
# TODO: Fill sum with the correct value, based on the
# args provided.
- sum = "0"
-
- return sum
+ # sum = "0"
+ result = str(sum(args))
+ result += 'Back'
+ return result
# TODO: Add functions for handling more arithmetic operations.
+
+def subtract(*args):
+ """Returns a string with the result a-b"""
+
+ result = str(args[0] - args[1])
+ result += 'Back'
+
+ return result
+
+def divide(*args):
+ """Return a string with the result of """
+ try:
+ result = str(args[0] / args[1])
+
+ except ZeroDivisionError:
+ result = "You can't divide by zero"
+ result += 'Back'
+
+ return result
+
+def multiply(*args):
+ """Returns the result of a*b"""
+
+ result = str(args[0] * args[1])
+ result += 'Back'
+
+ return result
+
+
def resolve_path(path):
"""
Should return two values: a callable and an iterable of
@@ -63,8 +148,30 @@ 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']
+ # func = add
+ # args = ['25', '32']
+
+ funcs = {
+ "add": add,
+ "subtract": subtract,
+ "multiply": multiply,
+ "divide": divide,
+ "instructions" : instructions
+ }
+ # print(f"!{path}!")
+ if "favicon.ico" in path or len(path) < 7:
+ func_name = "instructions"
+ left = "0"
+ right = "0"
+ else:
+ func_name, left, right = path.split('/')[1:4]
+
+ args = [int(left), int(right)]
+
+ try:
+ func = funcs[func_name]
+ except KeyError:
+ raise NameError
return func, args
@@ -76,9 +183,31 @@ def application(environ, start_response):
#
# TODO (bonus): Add error handling for a user attempting
# to divide by zero.
- pass
+ # pass
+
+ status = "200 OK"
+ headers = [('Content-type', 'text/html')]
+ try:
+ path = environ.get('PATH_INFO', None)
+ func, args = resolve_path(path)
+ body = html_wrapper(func(*args))
+ except NameError:
+ status = "404 Not Found"
+ body = html_wrapper("
Not Found
")
+ except Exception:
+ status = "500 Internal Server Error"
+ body = html_wrapper("
Internal Server Error
")
+ print(traceback.format_exc())
+ finally:
+ headers.append(('Content-length', str(len(body))))
+ start_response(status, headers)
+ return [body.encode('utf8')]
+
if __name__ == '__main__':
# TODO: Insert the same boilerplate wsgiref simple
# server creation that you used in the book database.
- pass
+ # pass
+ from wsgiref.simple_server import make_server
+ srv = make_server('localhost', 8080, application)
+ srv.serve_forever()
\ No newline at end of file
diff --git a/tests.py b/tests.py
index c2a8dcb..b7c435f 100644
--- a/tests.py
+++ b/tests.py
@@ -3,6 +3,13 @@
import http.client
import random
+"""
+http://localhost:8080/multiply/3/5
+http://localhost:8080/add/23/42
+http://localhost:8080/subtract/23/42
+http://localhost:8080/divide/22/11
+http://localhost:8080/
+"""
class WebTestCase(unittest.TestCase):
"""tests for the WSGI Calculator"""