lesson_12

students/dychowicz_monika/lesson_12_debbugging/README.md

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+### Lesson 12 - Debugging
+#### introduction
+- [Automate the Boring Stuff with Python / Chapter 10](https://automatetheboringstuff.com/chapter10/)
+#### practice projects
+1. [Automate the Boring Stuff with Python / Chapter 10 / Debugging Coin Toss](https://automatetheboringstuff.com/chapter10/)
+1. Verbose output - add configurable logger and 'verbose output' command line argument to project 1 from lesson 11 to allow the user to follow intermediate steps of program execution. The program must allow to configure verbosity on at least 3 levels - disabled, warning (warns and errors only) and info (most detailed)
+1. Implement 'verbose output' for project 2 from lesson 11
+1. Implement 'verbose output' for project 3 from lesson 11
+1. Validated user base - write script that takes email, password, phone number and postal code, validates these fields and if validation passes, saves it to a file as CSV with email considered as unique field. If a record with the same email is already in the file, the old record should be altered by new one. Use validators implemented in lesson 8, exercises 2, 3, 4 and 5. As part of this exercise write combined_validator function that takes email, password, phone number and postal code and throws exceptions if any of arguments doesn't pass validation. Add 'verbose output'.

students/dychowicz_monika/lesson_12_debbugging/coin_toss.py

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+import random
+import logging
+
+logging.basicConfig(level=logging.DEBUG,
+                    format=' %(asctime)s - %(levelname)s- %(message)s')
+
+guess = ''
+
+toss_int = random.randint(0, 1)  # 0 is tails, 1 is heads
+if toss_int == 0:
+    toss = "heads"
+else:
+    toss = "tails"
+
+logging.debug("toss = " + str(toss))
+
+while guess not in ('heads', 'tails'):
+    print('Guess the coin toss! Enter heads or tails:')
+    guess = input()
+if toss == guess:
+    print('You got it!')
+else:
+    print('Nope! Guess again!')
+    guess = input()
+    if toss == guess:
+        print('You got it!')
+    else:
+        print('Nope. You are really bad at this game.')

students/dychowicz_monika/lesson_12_debbugging/regex_validator.py

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+import re
+
+
+def email_validator(some_email):
+    email_regex = re.compile(r"[^@]+@[^@]+\.[^@]+")
+    result = email_regex.match(some_email)
+    if result is None:
+        return False
+    else:
+        return True
+
+
+def phone_number_validator(some_number):
+    phone_regex = re.compile(r"^\d{3}[- ]?\d{3}[- ]?\d{3}$")
+    if phone_regex.match(some_number) is None:
+        return False
+    else:
+        return True
+
+
+def postal_code_validator(some_postal_code):
+    postal_code_regex = re.compile(r"^\d\d-\d\d\d$")
+    if postal_code_regex.match(some_postal_code) is None:
+        return False
+    else:
+        return True
+
+
+def pass_checker(some_password):
+    if re.match(r'^(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9]).{8,}$',
+                some_password) is None:
+        return False
+    else:
+        return True

students/dychowicz_monika/lesson_12_debbugging/validated_user_base.py

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+import sys
+import regex_validator
+import logging
+import csv
+import argparse
+
+logging.basicConfig(format=' %(asctime)s - %(levelname)s- %(message)s')
+
+
+def combined_validator(email_addr, phone_nr, postal_code, passwd):
+    if not regex_validator.email_validator(email_addr):
+        raise Exception("Incorrect email")
+    if not regex_validator.phone_number_validator(phone_nr):
+        raise Exception("Incorrect phone number")
+    if not regex_validator.postal_code_validator(postal_code):
+        raise Exception("Incorrect postal code")
+    if not regex_validator.pass_checker(passwd):
+        raise Exception("Strong password required")
+
+
+def set_verbose_level(verbose_level):
+    logger = logging.getLogger()
+    if verbose_level == "info":
+        logger.setLevel(logging.INFO)
+    elif verbose_level == "warning":
+        logger.setLevel(logging.WARNING)
+    else:
+        logger.disabled = True
+
+
+def check_args(args=None):
+    parser = argparse.ArgumentParser()
+    parser.add_argument("-e", "--email",
+                        help="email",
+                        required=True)
+    parser.add_argument("-p", "--password",
+                        help="password",
+                        required=True)
+    parser.add_argument("-n", "--number",
+                        help="phone number",
+                        required=True)
+    parser.add_argument("-c", "--code",
+                        help="postal code",
+                        required=True)
+    parser.add_argument("-v", "--verbose",
+                        help="verbose level",
+                        choices=['disabled', 'warning', 'info'],
+                        default="warning")
+    res = parser.parse_args(args)
+    return res.email, res.password, res.number, res.code, res.verbose
+
+
+email, password, number, code, verbose = check_args(sys.argv[1:])
+user_data = {"email": email, "password": password, "number": number,
+             "code": code}
+
+
+def write_csv(write_file, read_file):
+    with open(write_file, 'a') as csv_write_file, open(read_file,
+                                                       'r') as csv_read_file:
+        fieldnames = ['email', 'password', 'number', 'code']
+        reader = csv.DictReader(csv_read_file, fieldnames=fieldnames)
+        writer = csv.DictWriter(csv_write_file, fieldnames=fieldnames)
+        email_exists = False
+        for i in reader:
+            logging.info("Data stored in file: {}".format(i))
+            if i['email'] == user_data['email']:
+                logging.info("email {} exists. Replacing user's data".format(
+                    i['email']))
+                email_exists = True
+        if not email_exists:
+            writer.writerow(user_data)
+            logging.info("User doesn't exists, adding new user's data.")
+            logging.info("Added user data: {}".format(user_data))
+
+
+if __name__ == '__main__':
+    level = verbose
+    set_verbose_level(level)
+    combined_validator(email, number, code, password)
+    write_csv("test.csv", "test.csv")

students/dychowicz_monika/lesson_12_debbugging/verbose_output.py

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+import os
+import re
+import argparse
+import logging
+
+logging.basicConfig(format=' %(asctime)s - %(levelname)s- %(message)s')
+
+
+def check_args(args=None):
+    parser = argparse.ArgumentParser()
+    parser.add_argument("-r", "--regex",
+                        help="regex",
+                        default=".*")
+    parser.add_argument("-d", "--directory",
+                        help="directory",
+                        default=r"C:\Python36\files")
+    parser.add_argument("-v", "--verbose",
+                        help="verbose level",
+                        choices=['disabled', 'warning', 'info'],
+                        default="warning")
+    results = parser.parse_args(args)
+    return results.regex, results.directory, results.verbose
+
+
+def set_verbose_level(verbose_level):
+    logger = logging.getLogger()
+    if verbose_level == "info":
+        logger.setLevel(logging.INFO)
+    elif verbose_level == "warning":
+        logger.setLevel(logging.WARNING)
+    else:
+        logger.disabled = True
+
+
+def regex_search(reg, folder):
+    regex_text = re.compile(reg)
+    logging.info("Regex = {}".format(regex_text))
+    files_list = os.listdir(folder)
+    logging.info("Files: {}".format(files_list))
+    for file in files_list:
+        if file.endswith('.txt'):
+            logging.info("Textfile found: {}".format(file))
+            with open(os.path.join(folder, file)) as textfile:
+                for line in textfile:
+                    if regex_text.match(line):
+                        print("Regex found " + line)
+                        logging.info("Regex found " + line)
+                    else:
+                        logging.warning("Regex not found" + line)
+        else:
+            logging.warning("File {} is not a text file".format(file))
+
+
+if __name__ == '__main__':
+    regex, directory, level = check_args()
+    set_verbose_level(level)
+    regex_search(regex, directory)