# Copyright 2014 Brett Slatkin, Pearson Education Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Preamble to mimick book environment
import logging
from pprint import pprint
from sys import stdout as STDOUT
# Example 1
for i in range(3):
print('Loop %d' % i)
else:
print('Else block!')
Loop 0 Loop 1 Loop 2 Else block!
# Example 2
for i in range(3):
print('Loop %d' % i)
if i == 1:
break
else:
print('Else block!')
Loop 0 Loop 1
# Example 3
for x in []:
print('Never runs')
else:
print('For Else block!')
For Else block!
# Example 4
while False:
print('Never runs')
else:
print('While Else block!')
While Else block!
# Example 5
a = 4
b = 9
for i in range(2, min(a, b) + 1):
print('Testing', i)
if a % i == 0 and b % i == 0:
print('Not coprime')
break
else:
print('Coprime')
Testing 2 Testing 3 Testing 4 Coprime
# Example 6
def coprime(a, b):
for i in range(2, min(a, b) + 1):
if a % i == 0 and b % i == 0:
return False
return True
print(coprime(4, 9))
print(coprime(3, 6))
True False
# Example 7
def coprime2(a, b):
is_coprime = True
for i in range(2, min(a, b) + 1):
if a % i == 0 and b % i == 0:
is_coprime = False
break
return is_coprime
print(coprime2(4, 9))
print(coprime2(3, 6))
True False