Section 12.13 Write Code Questions

# Line 1: import re
# Line 3: [A-Z] matches uppercase letter characters and [a-z] matches lowercase letter characters
# Line 4: Use the pattern variable to search the text
# Line 6: Include the else statement
import re
def text_match(text):
    pattern = '[A-Z]_[a-z]+'
    if re.search(pattern,  text):
            return('Found a match!')
    else:
            return('Not matched!')

print(text_match("aab_cbbbc"))
====
from unittest.gui import TestCaseGui

class MyTests(TestCaseGui):
    def testOne(self):
        self.assertEqual(text_match("aab_cbbc"), "Not matched!", 'text_match("aab_cbbc")')
        self.assertEqual(text_match("aaA_bbbc"), "Found a match!", 'text_match("aaA_bbbc")')
        self.assertEqual(text_match("A_abbbc"), "Found a match!", 'text_match("A_abbbc")')
        self.assertEqual(text_match("word_A"), "Not matched!", 'text_match("word_A")')
        self.assertEqual(text_match("myZ_oo"), "Found a match!", 'text_match("myZ_oo")')
MyTests().main()

# First import the regex library (re), then define the match_four function.
# Within the function, create the regex pattern to match if the string starts with '4'
# Use an if statement to check for a match in the string.
# Return true if the match is made, return false if not.
import re
def match_four(string):
    pattern = "^4\d*"
    if re.search(pattern,  string):
        return True
    else:
        return False
====
from unittest.gui import TestCaseGui

class MyTests(TestCaseGui):
    def testOne(self):
        self.assertEqual(match_four("468653892"), True, 'match_four("468653892")')
        self.assertEqual(match_four("648653892"), False, 'match_four("648653892")')
        self.assertEqual(match_four("41"), True, 'match_four("41")')
        self.assertEqual(match_four("4"), True, 'match_four("4")')
        self.assertEqual(match_four("786328042"), False, 'match_four("786328042")')
MyTests().main()

# In the function definition, create a regex pattern to find 'z'
# Search the string with that pattern using re.search()
# If found, return "Found a match!"
# Otherwise, return "Not matched!"
import re
def match_z(text):
    patterns = '\w*z\w*'
    if re.search(patterns,  text):
        return 'Found a match!'
    else:
        return('Not matched!')
====
from unittest.gui import TestCaseGui

class MyTests(TestCaseGui):
    def testOne(self):
        self.assertEqual(match_z("The lazy dog."), "Found a match!", 'match_z("The lazy dog.")')
        self.assertEqual(match_z("Python rocks!"), "Not matched!", 'match_z("Python rocks!")')
        self.assertEqual(match_z("Zippers"), "Not matched!", 'match_z("Zippers")')
        self.assertEqual(match_z("pez"), "Found a match!", 'match_z("pez")')
        self.assertEqual(match_z("abc"), "Not matched!", 'match_z("abc")')

MyTests().main()

# First import regex (re) and create a handle for the file.
# Initialize a list to hold the emails.
# Iterate through each line in the file, using rstrip() to remove whitespace and findall() with a regex expression to find the emails.
# Add each email to the list, individually
# Print the email list after each loop has completed.
import re
hand = open('mbox-short.txt')
email_list = []
for line in hand:
    line = line.rstrip()
    x = re.findall('[a-zA-Z0-9]\S+@\S+[a-zA-Z]', line)
    for email in x:
        email_list.append(x)
print(email_list)
====
from unittest.gui import TestCaseGui

class MyTests(TestCaseGui):
    def testOne(self):
        self.assertEqual(email_list, [['[email protected]'], ['[email protected]'], ['[email protected]'], ['[email protected]'], ['[email protected]'], ['[email protected]'], ['[email protected]'], ['[email protected]'], ['[email protected]'], ['[email protected]'], ['[email protected]']], "Testing that all the emails were matched.")
MyTests().main()

# Import regex (re), create a variable for the total number of emails, and create a handle to access the file.
# Iterate through lines in the file, remove trailing whitespace with rstrip(), and create a regex expression to use with findall() to return a list of email matches.
# Finally, increment the total_emails variable for each email in the list
# Print the variable after each loop has completed.
import re
total_emails = 0
hand = open('mbox-short.txt')
for line in hand:
    line = line.rstrip()
    x = re.findall('[a-zA-Z0-9]\S+@\S+[a-zA_Z]\s?(\d)', line)
    for item in x:
        total_emails += int(item)
print(total_emails)
====
from unittest.gui import TestCaseGui

class MyTests(TestCaseGui):
    def testOne(self):
        self.assertEqual(total_emails, 27, "Testing that the average was calculated properly.")

MyTests().main()