In this video I show a nice way to work with Data in Python, by using Tuples.
I also show how to easily and conveniently sort the Data based on your preferred criteria by using lambdas.
What happens if we have accents, ç, Ç etc…
You can download the code from:
https://gitlab.com/carles.mateo/python_combat_guide/-/blob/master/src/arrays_with_tuples.py
A really simple code I added to my Python 3 Exercises for Beginners book, to grab the title of a Web page.
from urllib import request
from bs4 import BeautifulSoup
s_url = "https://blog.carlesmateo.com/movies-i-saw/"
s_html = request.urlopen(s_url).read().decode('utf8')
o_soup = BeautifulSoup(s_html, 'html.parser')
o_title = o_soup.find('title')
print(o_title.string) # Prints the tag string content
# Another possible way
if o_soup.title is not None:
s_title = o_soup.title.string
else:
s_title = o_title.title
print(s_title)
I also included this code in the code repository for Python 3 Combat Guide book.
https://gitlab.com/carles.mateo/python_combat_guide/-/blob/master/src/html_parse_beautifulsoup4.py
Recently I showed you how to generate a Cloud Tag.
You may like some of other graphs that can be easily generated with matlib package.
I’ve been always working on BackEnd and APIs and I don’t work on FrontEnd, although I programmed some videogames by myself and I’ve fixed some huge bugs in JavaScript in some of the companies I work, but they considered myself the last resource, so I would fix a FrontEnd bug when nobody else could. But even if you work 99.9% of your time in BackEnd, Scaling, Architecture… like me, it is useful being able to draw graphics, for example, when you create a tool that shows the number of players per minute, and its evolution over time, or web visitors in real time, etc…
I wrote this article with two simple examples for my book Python 3 exercises for beginners.
You can find this source code here:
https://gitlab.com/carles.mateo/python-classes/-/blob/main/2021-09-10/draw_points.py
import matplotlib.pyplot as plt
a_points1 = [7, 3, 15, 5, 10, 2, 9]
a_points2 = [2, 4, 9, 2, 7, 8, 4]
plt.plot(a_points1)
plt.plot(a_points2)
plt.show()
We can also add customized axis:
https://gitlab.com/carles.mateo/python-classes/-/blob/main/2021-09-10/draw_points2.py
import matplotlib.pyplot as plt
a_points1 = [7, 3, 15, 5, 10, 2, 9]
a_points2 = [2, 4, 9, 2, 7, 8, 4]
a_points3 = [12, 10, 1, 7, 14, 16, 1]
a_days_of_the_week = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"]
plt.plot(a_days_of_the_week, a_points1)
plt.plot(a_days_of_the_week, a_points2)
plt.plot(a_days_of_the_week, a_points3)
plt.grid(axis='y', color='black', linestyle='solid')
plt.show()
import matplotlib.pyplot as plt
a_scores = [70, 20, 5, 5]
a_languages = ["Python", "Bash", "Java", "PHP"]
a_colors = ["Red", "Blue", "Green", "Cyan"]
plt.pie(a_scores, labels=a_languages, colors=a_colors)
plt.legend()
plt.show()This graphic represents in which languages I use my time nowadays, or if I update it by adding HTML and jQuery:
https://gitlab.com/carles.mateo/python-classes/-/blob/main/2021-09-10/draw_circle.py
I implemented this very simple game for my book Python 3 Exercises for Beginners.
Source Code available here:
https://gitlab.com/carles.mateo/python-classes/-/blob/main/2021-09-10/game_tic-tac-toe.py
class TicTacToe:
def __init__(self):
self.a_a_s_map = []
self.generate_map()
def generate_map(self):
self.a_a_s_map = []
for i_y in range(3):
a_s_pos_x = [" ", " ", " "]
self.a_a_s_map.append(a_s_pos_x)
def get_map(self):
s_map = ""
s_map = s_map + " 1 2 3\n"
s_map = s_map + " -------------\n"
for i_y in range(3):
s_map = s_map + str(i_y + 1) + " |"
for s_char in self.a_a_s_map[i_y]:
s_map = s_map + " " + s_char + " |"
s_map = s_map + "\n"
s_map = s_map + " -------------\n"
return s_map
def validate_move(self, s_char, i_x, i_y):
"""
Validates the movement and updates the map
:param s_char:
:param i_x:
:param i_y:
:return: bool
"""
i_x = i_x - 1
i_y = i_y - 1
if self.a_a_s_map[i_y][i_x] == " ":
self.a_a_s_map[i_y][i_x] = s_char
return True
return False
def check_win(self):
for s_char in ["O", "X"]:
# check horizontal
for i_y in range(3):
i_horizontal_match = 0
for i_x in range(3):
if self.a_a_s_map[i_y][i_x] == s_char:
i_horizontal_match = i_horizontal_match + 1
if i_horizontal_match == 3:
return True
# Check vertical
for i_x in range(3):
i_vertical_match = 0
for i_y in range(3):
if self.a_a_s_map[i_y][i_x] == s_char:
i_vertical_match = i_vertical_match + 1
if i_vertical_match == 3:
return True
# Check diagonal
if self.a_a_s_map[1][1] == s_char:
if self.a_a_s_map[0][0] == s_char and self.a_a_s_map[2][2] == s_char:
return True
if self.a_a_s_map[0][2] == s_char and self.a_a_s_map[2][0] == s_char:
return True
return False
def check_stale(self):
for i_y in range(3):
for i_x in range(3):
if self.a_a_s_map[i_y][i_x] == " ":
# Is not full
return False
# We checked all and all were full
return True
def get_from_keyboard(s_question, i_min, i_max):
i_number = 0
while True:
s_answer = input(s_question)
try:
i_number = int(s_answer)
except:
print("Please, type a number")
continue
if i_number < i_min or i_number > i_max:
print("Invalid value. Values should be between", i_min, "and", i_max)
continue
# Validations are Ok
break
return i_number
if __name__ == "__main__":
o_tictactoe = TicTacToe()
while True:
s_map = o_tictactoe.get_map()
print(s_map)
while True:
i_x = get_from_keyboard("Your move O for x: ", i_min=1, i_max=3)
i_y = get_from_keyboard("Your move O for y: ", i_min=1, i_max=3)
b_valid_move = o_tictactoe.validate_move("O", i_x, i_y)
if b_valid_move is False:
print("Invalid move")
continue
break
s_map = o_tictactoe.get_map()
print(s_map)
b_check_win = o_tictactoe.check_win()
if b_check_win is True:
print("Player O wins!")
exit(0)
b_stale = o_tictactoe.check_stale()
if b_stale is True:
print("Nobody wins in war")
exit(0)
while True:
i_x = get_from_keyboard("Your move X for x: ", i_min=1, i_max=3)
i_y = get_from_keyboard("Your move X for y: ", i_min=1, i_max=3)
b_valid_move = o_tictactoe.validate_move("X", i_x, i_y)
if b_valid_move is False:
print("Invalid move")
continue
break
s_map = o_tictactoe.get_map()
print(s_map)
b_check_win = o_tictactoe.check_win()
if b_check_win is True:
print("Player X wins!")
exit(0)