Eilučių formatavimas

# In programming, these 3 variables come from functions dynamically depending on the page you are on 
chapter="basics"
subchapter="start"
tutorial="strings_formatting"
route=f"{chapter}/{subchapter}/{tutorial}"
print(route)

name="Vilijus" # Imagine that this variable is retrieved from the database
greeting_message=f"Hello, {name}"
print(greeting_message) # Instead of printing, it would be shown on the page in a website

name="Vilijus"
greeting_message=""

# Time could be retrieved dynamically, but for simplicity, we made it constant
current_time = 14 # hours
if current_time >= 5 and current_time < 11:
    greeting_message=f"Good morning, Sir {name}"
elif current_time >= 11 and current_time < 20:
    greeting_message=f"Good day, Sir {name}"
else:
    greeting_message=f"Good evening, Sir {name}"

print(greeting_message)

name="Potential victim"
email_text = f"""
Subject: Urgent Assistance Required

Dear {name},

I am Prince Adebayo Olufemi of Nigeria. I need your help to transfer $20,000,000 out of the country. 
You will receive 30% ($6,000,000) for your assistance.

Please provide the following details:
1. Full name
2. Contact address
3. Phone number
4. Bank name and address
5. Bank account number and SWIFT code

Please keep this matter confidential. Time is of the essence. Awaiting your prompt response.

Best regards,
Prince Adebayo Olufemi
"""

print(email)

age=25
f_string=f"I am {age} years old"
print(f_string)

age=25
print(f"I am {age} years old")

a=5
b=10
print(f"{a}+{b}={a+b}")

approximate_pi = 22/7
print(f"{approximate_pi:.4f}") # prints: 3.1429

value = 3.45123951923
print(f"{value:.1f}") # prints: 3.5

print(f"{3+0.45123951923:.1f}") # prints: 3.5

print(f"{125000:e}") # prints: 1.250000e+05

print(f"{125000:.2e}") # prints: 1.25e+05

# Line below will print number in non-scientific notation 
print(f"{126000:.1e}") # prints: 1.2e+05

number=15
print(f"decimal {number} in binary is equal to {number:b}") # prints: decimal 15 in binary is equal to 1111
print(f"decimal {number} in octal is equal to {number:o}") # prints: decimal 15 in octal is equal to 17
print(f"decimal {number} in hexadecimal is equal to {number:x}") # prints: decimal 15 in hexadecimal is equal to f 

another_number = 2025
print(f"decimal {another_number} in binary is equal to {another_number:b}") # prints: decimal 2025 in binary is equal to 11111101001
print(f"decimal {another_number} in octal is equal to {another_number:o}") # prints: decimal 2025 in octal is equal to 3751
print(f"decimal {another_number} in hexadecimal is equal to {another_number:x}") # prints: decimal 2025 in hexadecimal is equal to 7e9

first_number=0.5
print(f"{first_number} is equal to {first_number:%}") # prints: 0.5 is equal to 50.000000%

second_number=0.01
print(f"{second_number} is equal to {second_number:.2}") # 0.01 is equal to 1.00%

third_number=0.999
print(f"{third_number} is equal to {third_number:.1%}") # 0.99 is equal to 99.00%

fourth_number=1
print(f"{fourth_number} is equal to {fourth_number:.0%}") # 1 is equal to 100.00%

# In future you will learn how to make it more readable and less clunky
name_1="Alice"
position_1="Software engineer"
age_1=19
salary_1=1200

name_2="Bob"
position_2="Teacher"
age_2=25
salary_2=990

name_3="Charlie"
position_3="Data analyst"
age_3=26
salary_3=2790


# Header row
print("Name Position Age Salary")

# Data rows
print(f"{name_1} {position_1} {age_1} {salary_1}")
print(f"{name_2} {position_2} {age_2} {salary_2}")
print(f"{name_3} {position_3} {age_3} {salary_3}")

# Outputs:
# Name Position Age Salary
# Alice Software engineer 19 1200
# Bob Teacher 25 990
# Charlie Data analyst 26 2790

# ...
# The same variables as in the earlier example

# Header row
print(f"{'Name':10} {'Position':18} {'Age':8} {'Salary':8}")

# Data rows
print(f"{name_1:10} {position_1:18} {age_1:8} {salary_1:8}")
print(f"{name_2:10} {position_2:18} {age_2:8} {salary_2:8}")
print(f"{name_3:10} {position_3:18} {age_3:8} {salary_3:8}")

# Outputs:
# Name       Position           Age      Salary  
# Alice      Software engineer        19     1200
# Bob        Teacher                  25      990
# Charlie    Data analyst             26     2790

# ...
# The same variables as in the earlier example

# Header row
print(f"{'Name':<10} {'Position':>18} {'Age':>8} {'Salary':>8}")

# Data rows
print(f"{name_1:<10} {position_1:>18} {age_1:>8} {salary_1:>8}")
print(f"{name_2:<10} {position_2:>18} {age_2:>8} {salary_2:>8}")
print(f"{name_3:<10} {position_3:>18} {age_3:>8} {salary_3:>8}")

# Outputs:
# Name                 Position      Age   Salary
# Alice       Software engineer       19     1200
# Bob                   Teacher       25      990
# Charlie          Data analyst       26     2790

# ...
# The same variables as in the earlier example

# Header row
print(f"{'Name':*<10} {'Position':Z>18} {'Age':+>8} {'Salary':?>8}")

# Data rows
print(f"{name_1:*<10} {position_1:Z>18} {age_1:+>8} {salary_1:?>8}")
print(f"{name_2:*<10} {position_2:Z>18} {age_2:+>8} {salary_2:?>8}")
print(f"{name_3:*<10} {position_3:Z>18} {age_3:+>8} {salary_3:?>8}")

# Outputs:
# Name****** AAAAAAAAAAPosition +++++Age ==Salary
# Alice***** ASoftware engineer ++++++19 ====1200
# Bob******* AAAAAAAAAAATeacher ++++++25 =====990
# Charlie*** AAAAAAData analyst ++++++26 ====2790

# Single quotation marks
string1 = 'Hello, World!'

# Double quotation marks
string2 = "Hello, World!"

print(string1)  # Output: Hello, World!
print(string2)  # Output: Hello, World!


# -------------------------------------------------
# Using double quotes to include a single quote inside the string
string_with_single_quote = "It's a beautiful day!"

# Using single quotes to include double quotes inside the string
string_with_double_quote = 'She said, "Hello!"'

print(string_with_single_quote)  # Output: It's a beautiful day!
print(string_with_double_quote)  # Output: She said, "Hello!"


# ----------------------------------------------------
# Triple double quotes
multi_line_string1 = """This is a
multi-line string
using triple double quotes."""

# Triple single quotes
multi_line_string2 = '''This is a
multi-line string
using triple single quotes.'''

print(multi_line_string1)
print(multi_line_string2)

my_string="I aM sTrInG"
uppercase_string=my_string.upper()
lowercase_string=my_string.lower()

print(f"{'Original string:':<20} {my_string}")
print(f"{'Uppercase string:':<20} {uppercase_string}")
print(f"{'Lowercase string:':<20} {lowercase_string}")

# Outputs:
# Original string:     I aM sTrInG
# Uppercase string:    I AM STRING
# Lowercase string:    i am string

scream="aaaaaaaaaaaaaaaah!"

print("scream in lowercase:")
story = f'''Once upon a time, Ella wandered into the forest 
and suddenly screamed, "{scream}" when she saw a squirrel.
'''
print(story)

print("scream in uppercase:")
story = f'''Once upon a time, Ella wandered into the forest 
and suddenly screamed, "{scream.upper()}" when she saw a squirrel.'''
print(story)

# outputs:
# scream in lowercase:
# Once upon a time, Ella wandered into the forest 
# and suddenly screamed, "aaaaaaaaaaaaaaaah!" when she saw a squirrel.

# scream in uppercase:
# Once upon a time, Ella wandered into the forest 
# and suddenly screamed, "AAAAAAAAAAAAAAAAH!" when she saw a squirrel.

print("Hello".upper())
print("Hello".lower())

# outputs:
# HELLO
# hello

# Generated with ChatGPT
text = """
Ella loved to explore the forest adn the hills. Every day, she would pack a sandwich adn a bottle of water, adn head out on her adventure. The birds would sing adn the leaves would rustle in the wind. She always hoped to find something new adn exciting.

One day, while walking, she found an old, abandoned cabin. The door was ajar adn the windows were broken. She peered inside adn saw a dusty old book on the table. The cover was ornate adn the pages were yellowed with age. She carefully opened the book adn began to read.

The book told stories of the forest adn the creatures that lived within. It spoke of hidden treasures adn ancient secrets. Ella was captivated adn spent hours reading. As the sun began to set, she realized it was time to go home. She carefully placed the book back on the table adn made her way back through the forest, thinking about all the new places she would explore tomorrow.

The next morning, Ella woke up early adn couldn't wait to return to the cabin. She quickly ate her breakfast adn packed her bag. On her way, she met her friend Jack. She told him about the cabin adn the book. Jack was excited adn decided to join her. Together, they walked through the forest adn found the cabin.

Inside, they found not only the book but also a map. The map showed a path to a hidden waterfall. Ella adn Jack decided to follow the map adn see where it led. The path was winding adn overgrown, but they were determined. After a long walk, they finally reached the waterfall. It was beautiful adn the water sparkled in the sunlight.

They spent the rest of the day exploring the area adn playing in the water. As the day came to an end, they knew they had found a special place. They made a pact to return often adn discover more of the forest's secrets together.
"""

print("------------------------------------------------------------------")
print("Original text:")
print("------------------------------------------------------------------")
print(text)

print("------------------------------------------------------------------")
print("Fixed text ('adn' replaced with 'and'):")
print("------------------------------------------------------------------")

print(text.replace("adn", "and"))

# "pink"       -    -    -    -    -    -    -    -    -    -    -    +    -    -    -    -    -    -    -
words_salad = "PINK Pink pInk piNk pinK PInk pINk piNK PiNk PinK pINk pink piNK piNK PINk PiNK pINK PInK pINK"
# replace "pink" with "+I AM CHANGED+".
modified_salad = words_salad.replace("pink", "+I AM CHANGED+")
print(modified_salad)

# Outputs:     PINK Pink pInk piNk pinK PInk pINk piNK PiNk PinK pINk +I AM CHANGED+ piNK piNK PINk PiNK pINK PInK pINK

six_potatoes = "potato potato potato potato potato potato"
# We will change occurences of three potatoes to tomato.
three_potatoes = six_potatoes.replace("potato", "tomato", 3)
print(three_potatoes) # prints: tomato tomato tomato potato potato potato

similar_words="down, downtown, breakdown, downgrade, standdown, downbeat, throwdown"
print(similar_words.replace("down", "up")) 

# Outputs: up, uptown, breakup, upgrade, standup, upbeat, throwup

text_with_spaces="I am going to learn programming"
print(text_with_spaces.replace(" ", "---"))

# Outputs: 
# I---am---going---to---learn---programming

greeting="Hello"
subject="World"

message=greeting+subject
print(message) # prints: HelloWorld

greeting="Hello"
subject="World"

message=greeting+ ", " + subject
print(message) # prints: Hello, World

greeting="Hello"
subject="World"

message=f"{greeting}, {subject}"
print(message) # prints: Hello, World

greeting="Hello"
print(greeting) # prints: Hello

greeting_10_times = greeting * 10
print(greeting_10_times) # prints: HelloHelloHelloHelloHelloHelloHelloHelloHelloHello

# Define the progress values
current = 75
total = 100
bar_length = 50

# Calculate the progress
progress = current / total

# Create the bar
arrow = '#' * int(progress * bar_length)
spaces = '-' * (bar_length - len(arrow))

# Print the progress bar
print(f"[{arrow}{spaces}] {int(progress * 100)}%")

# Outputs:
# [#####################################-------------] 75%

import time
import random

def progress_bar(current, total, bar_length=50):
    progress = current / total
    arrow = '#' * int(progress * bar_length)
    spaces = '-' * (bar_length - len(arrow))
    print(f"\n[{arrow}{spaces}] {int(progress * 100)}%", end='')

total = 100  # Total steps in the progress
current = 0

while current < total:
    progress_bar(current, total)
    time.sleep(0.2)  # Simulate work being done
    current += random.randint(1, 5)  # Randomly increment progress

# Ensure the progress bar completes at 100%
progress_bar(total, total)
print("\nProcess complete!")

message="hello,\nWorld!"
print(message)

# Outputs:
# hello,
# World!

message="hello,\nWorld!"
message=message.replace("\n", " ")
print(message)

# Outputs:
# hello,
# World!

print("Norint padaryti naują eilutę, programuojant reikia rašyti simbolį \n")

# Outputs:
# Norint padaryti naują eilutę, programuojant reikia rašyti simbolį 
#

print("Norint padaryti naują eilutę, programuojant reikia rašyti simbolį \\n")

# Outputs:
# Norint padaryti naują eilutę, programuojant reikia rašyti simbolį \n

print("Slash \")

print("Slash \\")

print("Quotation mark "")

print("Quotation mark \"")

name_1 = "Alice"
position_1 = "Software engineer"
age_1 = 19
salary_1 = 1200
annual_bonus_1 = salary_1 * 0.1  # 10% of salary

name_2 = "Bob"
position_2 = "Teacher"
age_2 = 25
salary_2 = 990
annual_bonus_2 = salary_2 * 0.15  # 15% of salary

name_3 = "Charlie"
position_3 = "Data analyst"
age_3 = 26
salary_3 = 2790
annual_bonus_3 = salary_3 * 0.2  # 20% of salary

name_4 = "David"
position_4 = "Research Scientist"
age_4 = 30
salary_4 = 15000.75
annual_bonus_4 = salary_4 * 0.25  # 25% of salary

name_5 = "Eve"
position_5 = "Graphic Designer"
age_5 = 28
salary_5 = 3500
annual_bonus_5 = salary_5 * 0.12  # 12% of salary

header = f"{'Name':<10} {'Position':>18} {'Age':>8} {'Salary':>8}"
print('=' * len(header))
print(header)
print('=' * len(header))

header = f"{'Name':<10} {'Position':>18} {'Age':>8} {'Salary':>8}"
print('=' * 47)
print(header)
print('=' * 47)

name = "Alice"
age = 19
formatted_string = "Name: " + name + ", Age: " + str(age)
print(formatted_string) # prints: Name: Alice, Age: 19

name = "Alice"
age = 19
formatted_string = "Name: %s, Age: %d" % (name, age)
print(formatted_string) # prints: Name: Alice, Age: 19

name = "Alice"
age = 19
formatted_string = "Name: {}, Age: {}".format(name, age)
print(formatted_string) # prints: Name: Alice, Age: 19

# With positional arguments
formatted_string = "Name: {0}, Age: {1}".format(name, age)
print(formatted_string) # prints: Name: Alice, Age: 19

# With named arguments
formatted_string = "Name: {name}, Age: {age}".format(name=name, age=age)
print(formatted_string) # prints: Name: Alice, Age: 19

# Create the template
template = "Name: {name}, Age: {age}, Position: {position}"

# Use the template later to format with actual values
data_1 = {"name": "Alice", "age": 19, "position": "Software Engineer"}
data_2 = {"name": "Bob", "age": 25, "position": "Teacher"}
data_3 = {"name": "Charlie", "age": 26, "position": "Data Analyst"}

# Format using the template and the data dictionaries
formatted_string_1 = template.format(name=data_1['name'], age=data_1['age'], position=data_1['position'])
formatted_string_2 = template.format(name=data_2['name'], age=data_2['age'], position=data_2['position'])
formatted_string_3 = template.format(name=data_3['name'], age=data_3['age'], position=data_3['position'])

print(formatted_string_1) # prints: Name: Alice, Age: 19, Position: Software Engineer
print(formatted_string_2) # prints: Name: Bob, Age: 25, Position: Teacher
print(formatted_string_3) # prints: Name: Charlie, Age: 26, Position: Data Analyst

import re

# Example list of email addresses
emails = [
    "john.doe@example.com",
    "jane.smith+123@anotherdomain.com",
    "alice.jones+extra@sample.org",
    "bob.brown+sales@domain.net",
    "carol.white@company.co",
    "david.black+2023@service.io",
    "eva.green+work@domain.org",
    "frank.red@workplace.com",
    "grace.blue+notes@otherdomain.com",
    "harry.yellow+personal@mail.org"
]

# Before parsing
print("Before parsing:")
for email in emails:
    print(email)

def parse_names(emails):
    name_pattern = re.compile(r'([a-z]+)\.([a-z]+)(\+[a-z0-9]+)?@[a-z]+\.[a-z]+', re.IGNORECASE)
    parsed_names = []

    for email in emails:
        match = name_pattern.match(email)
        if match:
            name, surname, _ = match.groups()
            parsed_names.append((name.capitalize(), surname.capitalize()))

    return parsed_names

# Parsing names from the emails
parsed_names = parse_names(emails)

# After parsing
print("\nAfter parsing:")
for name, surname in parsed_names:
    print(f"Name: {name}, Surname: {surname}")

import re

# Messy example post with emojis
post = """
Just had an AMAZING weekend getaway in the mountains!!! 🏔️ The weather was perfect, and the views were ABSOLUTELY breathtaking. 🌄
Hiking trails were challenging but so WORTH it. 🚶‍♂️ Spent the evenings by the campfire with friends, sharing stories and enjoying
some delicious homemade food. 🍲 Can't wait to go back!!! If you love nature and adventure, I highly recommend visiting this place. 🌲
Also, saw some wildlife including deer and a bear from a safe distance!!! 🦌🐻 Hiking is such a rewarding activity, and being in nature 
is incredibly refreshing. 🌳 The sounds of the forest, the fresh air, and the beautiful scenery make it all worthwhile. 🌿
Whether it's a short walk or a long trek, hiking is always an adventure. 🌄 Every trip brings new experiences and memories to cherish. 
Can't get enough of this amazing place and its stunning trails. 🥾🏞️ Truly a hiker's paradise. If you haven't been here, you're missing out!
The wildlife here is so diverse, and the landscapes are just stunning. 🌺🍃 Hiking enthusiasts, this place is a must-visit! 🏕️✨
#weekend #nature #hiking #adventure #friends #relax #wildlife #explore #outdoors @naturelover @hikingworld
"""

# Clean the text
# Remove hashtags, mentions, and special characters
cleaned_post = re.sub(r'[@#]\w+', '', post)
# Remove emojis and other non-alphanumeric characters
cleaned_post = re.sub(r'[^\w\s]', '', cleaned_post)
# Convert to lowercase
cleaned_post = cleaned_post.lower()

# Calculate word frequencies
words = cleaned_post.split()
stop_words = ['the', 'and', 'a', 'it', 'was', 'in', 'of', 'to', 'for', 'on', 'at', 'is', 'that', 'with', 'this', 'we', 'our', 'as', 'but', 'i', 'an']
word_counts = {}
for word in words:
    if word not in stop_words:
        if word in word_counts:
            word_counts[word] += 1
        else:
            word_counts[word] = 1

# Display the results
print("Word Frequencies:")
for word, freq in sorted(word_counts.items(), key=lambda item: item[1], reverse=True):
    if(freq > 1):
        print(f"{word}: {freq}")

cleaned_post = re.sub(r'[@#]\w+', '', post)

cleaned_post = re.sub(r'[^\w\s]', '', cleaned_post)

# Convert to lowercase
cleaned_post = cleaned_post.lower()

# Calculate word frequencies
words = cleaned_post.split()

['just', 'had', 'an', 'amazing', 'weekend', 'getaway', 'in', 'the', 'mountains', 'the', 'weather', 'was', 'perfect', 'and', 'the', 'views', 'were', 'absolutely', 'breathtaking', 'hiking', 'trails', 'were', 'challenging', 'but', 'so', 'worth', 'it', 'spent', 'the', 'evenings', 'by', 'the', 'campfire', 'with', 'friends', 'sharing', 'stories', 'and', 'enjoying', 'some', 'delicious', 'homemade', 'food', 'cant', 'wait', 'to', 'go', 'back', 'if', 'you', 'love', 'nature', 'and', 'adventure', 'i', 'highly', 'recommend', 'visiting', 'this', 'place', 'also', 'saw', 'some', 'wildlife', 'including', 'deer', 'and', 'a', 'bear', 'from', 'a', 'safe', 'distance', 'hiking', 'is', 'such', 'a', 'rewarding', 'activity', 'and', 'being', 'in', 'nature', 'is', 'incredibly', 'refreshing', 'the', 'sounds', 'of', 'the', 'forest', 'the', 'fresh', 'air', 'and', 'the', 'beautiful', 'scenery', 'make', 'it', 'all', 'worthwhile', 'whether', 'its', 'a', 'short', 'walk', 'or', 'a', 'long', 'trek', 'hiking', 'is', 'always', 'an', 'adventure', 'every', 'trip', 'brings', 'new', 'experiences', 'and', 'memories', 'to', 'cherish', 'cant', 'get', 'enough', 'of', 'this', 'amazing', 'place', 'and', 'its', 'stunning', 'trails', 'truly', 'a', 'hikers', 'paradise', 'if', 'you', 'havent', 'been', 'here', 'youre', 'missing', 'out', 'the', 'wildlife', 'here', 'is', 'so', 'diverse', 'and', 'the', 'landscapes', 'are', 'just', 'stunning', 'hiking', 'enthusiasts', 'this', 'place', 'is', 'a', 'mustvisit']

stop_words = ['the', 'and', 'a', 'it', 'was', 'in', 'of', 'to', 'for', 'on', 'at', 'is', 'that', 'with', 'this', 'we', 'our', 'as', 'but', 'i', 'an']
word_counts = {}
for word in words:
    if word not in stop_words:
        if word in word_counts:
            word_counts[word] += 1
        else:
            word_counts[word] = 1

# Display the results
print("Word Frequencies:")
for word, freq in sorted(word_counts.items(), key=lambda item: item[1], reverse=True):
    if(freq > 1):
        print(f"{word}: {freq}")

pip3 install wordcloud

pip3 install matplotlib

from wordcloud import WordCloud
import matplotlib.pyplot as plt

# Generate word cloud
wordcloud = WordCloud(width=800, height=400, background_color='white').generate_from_frequencies(word_counts)

# Display the word cloud
plt.figure(figsize=(10, 5))
plt.imshow(wordcloud, interpolation='bilinear')
plt.axis('off')
plt.show()