index.py

# variables
# data types
# type casting
# input in python
# madlibs game in python #
# basic arithmetic operation in python
# the math module
# if statements in python
# Logical operators in python
# string method in python
# string indexing
# Format specifiers in py #
# while loop in python
# for loops in python 
# compound interest calculator in py
# countdown timer in py
# nested loop 
# collections in pyton
# shopping cart program  #


# ths i a python code of about 2000 lines to master python programming language
print("cup cake is my favourite food")

# varibales
# variables are container for a value
# the diferent variables we have are (strings, integer, float, boolean)
# this are not container types of variables
# variables behve as if it was the value it containes
# ensure it variables has a unique name #

first_name = "festus"  # this ia astring

print(first_name)
# to write our variables along with some text we use a f-string
# where f stands for format#
print(f"okay you might not know but my name is {first_name}")

# more example of variables will be used to explain data types in python
# exmple of integer #

age = 40  # this is an integer
print(f"okay you might not know but my age is {age}")
# if thiss numbers are placed within quotes then they become strings

# Float- this is a number but that contains a decimal number

price = 40.00
print(f"the price is ${price}")

# boolean this is either true or false
is_student = True

print(f"Is he a student? {is_student}")


# type casting in python
# this is the process of converting a variable from one data type to another
# str() int() float() bool()  this are metods
# @bro-code @typecasting.py#


# Input () method
# accepting user input in python
# this is a method that prompts users to empty input and returns the input as a string
# @bro-code @input.py #


# madlibs game
# a word game where you create a story by filling in blanks with random words
# @test-runs @mathlib-game.py #


# math in python
# basic arithmetic operatons
# talking about argumented assignmnt operator.

# then built in mathrelated variables or method....
# round()
# abs()
# max()
# min()
# math module#
# math.pow
# math.sqrt
# math.random #


# if statements in python
# do some code only if some consition istrue else do something else
#  #
for_sale = True
if for_sale:
    print("this goods are for_ sale ")
else:
    print("this goods arenot for sale ")

# python calculator program-------- this was built using an if statement and the order of arrangment is essential

# python weight converter program--------- this also takes the metho of if statement wth a clear arrangement of order
# and logic specifying the weight from and the weight to and the deeds that amounrts when condiion isn't met at all
# Temperature calculator program---------- this isalso done with an if statement followoing the rues
# this is done to solidify the knowledge of if statements
#
# because conditionls are really essentials to programs and writing a clear logic  of conditionals
# ensure a smooth running program that it logic won't break despite the value inputedd
#
# think of this as a word provblem  #


# logical operators in python
# this alows evaluation of multiple condition {or, and, not}
# or--- at lest one condition must be true
# and--- both conditions must be true
# not--- invrts the condition {not fase, not true
#  or, and, and not is the syntax for writing these


# condtional expression
#  this is one-line shortcut for the if else statement (tenery operator) in js
# print of assign one or two value based on a condition
# syntax-analogy--- X if condition else Y #


# String methods in python.. #

# string indexing
# alloes aessing element of a sequence using []
# indexing operator
# [start, end, step]
# [] called an indexing operator #

credicCard_number = "1234-5678-1313-7373737"
# if i meed the first character in this string it coud be accessed through indexing
credicCard_number[0]
print(credicCard_number)


# Format specifiers in py
# {:flags} this formats a value based on what flags are inserted
# .(number)f to round to that many decimal places
# :(number) allocate that many spaces
# :03 allocate and zero pad that many spaces
# :< left justify
# :> right justify
# :^ center align
# :+ use a plus sign to indicate positive value
# := place sign to leftmost position\
# : insert a space before positive numbers
# :, comma separatr #


# While loop in python
#  A while loop will execurte some code while some conditionns are true
#  #


# compound interest calc in py
# 



# for loops in python
# execute a block of code a fixed number of times 
# you can iterate over a range, string, sequence etc #


# countdown timer in python 
# in this case we use time modulem in this case 
# an esential feature in python to handle time 
# 
# the sleep function of the time module allows out program to sleep for a 
# given time before execution #
 


# nested loop in py 
# a loop within another loop
# outer and inner 
# syntax of how nested loop looks like 
# outer loop:
#   inner loop:
#       and the rest of the code till we exit both loop by ending the indentation
# it could literarily be any loop inside any loop
#  #

 

# collections in py
# single "variale" used to store multiple vlues 
# list [] it is ordered and changeable, Duplicates ok
# set {} unordered and immutable, but add/remove Ok, No Duplicates
# tupple ()  ordered and unchangeable, Duplicates OK  #



# shopping cart program #

# dictionary in python