Python

Loops

A for loop:

# Syntax for iterating over elements in a collection (e.g., list, tuple, string):
for item in collection:
    # Code block executed for each item

# Syntax for iterating over a range of numbers:
for i in range(start, stop, step):
    # Code block executed for each value in the range

A while loop:

# Syntax for a while loop:
while condition:
    # Code block executed as long as the condition is true

Variable assignment

# Syntax for variable assignment:
variable_name = value

Functions

# Syntax for defining a function:
def function_name(parameter1, parameter2, ...):
    # Code block defining the function's behavior
    return result

String interpolation

# Syntax for f-string interpolation:
variable = 'world'
message = f'Hello, {variable}!'
print(message)  # Output: Hello, world!

Multiline strings

# Syntax for multiline strings:
multiline_string = '''
This is a multiline string.
It can span multiple lines.
'''

File I/O

# Syntax for reading from a file:
with open('filename.txt', 'r') as file:
    content = file.read()

# Syntax for writing to a file:
with open('output.txt', 'w') as file:
    file.write('Hello, world!')

HTTP requests

# Syntax for making an HTTP GET request:
import requests

response = requests.get('https://api.example.com/data')
data = response.json()  # Assuming the response contains JSON data

Arrays (Lists)

# Creating a list:
my_list = [1, 2, 3, 4, 5]

# Accessing elements:
print(my_list[0])  # Output: 1

# Slicing:
print(my_list[1:4])  # Output: [2, 3, 4]

# Modifying elements:
my_list[2] = 10
print(my_list)  # Output: [1, 2, 10, 4, 5]

# Appending elements:
my_list.append(6)
print(my_list)  # Output: [1, 2, 10, 4, 5, 6]

Dictionaries (Maps)

# Creating a dictionary:
my_dict = {'name': 'John', 'age': 30, 'city': 'New York'}

# Accessing elements:
print(my_dict['name'])  # Output: John

# Modifying elements:
my_dict['age'] = 35
print(my_dict)  # Output: {'name': 'John', 'age': 35, 'city': 'New York'}

# Adding new key-value pairs:
my_dict['occupation'] = 'Engineer'
print(my_dict)  # Output: {'name': 'John', 'age': 35, 'city': 'New York', 'occupation': 'Engineer'}