Python Tutorial

• Python Add PYTHONPATH
• Python Code Blocks and Indentation
• Python Comment
• Python Variable
• Python Data Type
• Python Type Conversion and Casting
• Python Input and Output
• Python Operator
• Python Iterator
• Python Generator

Python Flow Control

• Python if else
• Python for Loops
• Python while Loops
• Python break Statement
• Python continue Statement
• Python pass Statement
• Python switch Statement

Python Functions

• Python Function
• Python Recursion
• Python Anonymous/Lambda Function
• Python Modules
• Python Package

Python Data Types

• Python Number
• Python String
• Python List
• Python Tuple
• Python Set
• Python Dictionary

Python Date and Time

• Python datetime
• strftime(): from datetime to readable string
• strptime(): read string to datetime
• Get current date and time
• Make a time delay
• Convert between local time and UTC time
• Get whole program execution time
• Iterate through a range of dates
• Get the last day of month
• Add/subtract a day
• Convert seconds to HH:MM:SS

Python Files

• Python Open and Close File
• Python Read File
• Python Write File
• Python Move File
• Python Remove File and Directory
• Read Write CSV file
• Read Write JSON file
• Zip File and Directory
• List all files of a directory
• List all sub-directories of directory
• Check a file or directory exists
• Create a directory safely
• Get current directory and file path
• Read big file
• Web page and file download over HTTP
• Search and replace a line to file
• Get file modification time
• Read specific lines from a file by line number
• Check file size
• Get filename and extension

Python String

• String updating, replacing and deleting
• Formatting of Strings
• String format converting
• Convert ASCII string
• String Escape Sequencing
• String lower and upper case
• Find substring in a string
• Count all occurrences of a substring
• Compare two strings
• Split a string into a list
• Split strings into words with multiple delimiters
• Extract numbers from a string
• Conbine items in a list to a single string
• Put a int variable inseide a string
• Compare string in case insensitive
• Check if multiple strings exist in another string
• Check if string exists in a list of strings
• Generate random string
• Remove trailing whitespace in strings

Python List

• List items Adding
• List items Accessing
• List items removing
• List items modifying
• List items iterating
• List items sorting
• List Comprehension
• Convert string representation of list to a list
• Clone a list
• Rotate a list
• Remove duplicates from list
• Define a two-dimensional array
• Sort a list of lists by value
• Sort list based on values from another list
• Sort a list of objects by an attribute of the objects
• Split a list into evenly sized chunks
• Creare a flat list out of a nested list
• Get all possible combinations of a list's elements
• Get the Cartesian product of a series of lists
• Find the index of an element in a list
• Concatenate two list
• Count the occurrences of a list item
• Transpose list of lists
• Find the difference between two lists
• Select items from list randomly
• Iterate a list as (current, next) pair
• Shuffle a list
• Find the cumulative sum of numbers in a list
• Get unique values from a list
• Generate all permutations of a list
• Find the intersection between two lists
• Find the duplicates in a list
• Check item in list
• Convert a list to a string
• Find the average of a list
• Alternate combine two lists
• Extract specific element from each sublist

Python Dictionary

• Add and Modify Dictionary elements
• Delete elements from Dictionary
• Sort dictionary by key
• Sort dictionary by value
• Combine and merge dictionaries
• Convert a String representation of a Dictionary to a dictionary
• Get key by value in dictionary
• Copy a dictionary and edit the copy only
• Create dictionary with dict comprehension and iterables
• Get key with maximum value in dictionary
• Make dictionary from list
• Filter dictionary to contain specific keys

Python Variable

• Python Global Variables and Global Keyword
• Python Local and Nonlocal Variables
• Python Static Class variables
• Create variable variables
• Create variables dynamically in while loop
• Test Single Variable in Multiple Values
• Swap two variables
• Set a Python variable to 'undefined'
• Set and access environment variables

Python Input/Output

• Formatting Output
• Interactive Input/Output
• Indefinitely Request User Input Until a Valid Response
• Read user input as number
• Pretty print JSON
• Print number

Python Exceptions

• Python Exception and Error
• Python AssertionError
• Python AttributeError
• Python EOFError
• Python FloatingPointError
• Python GeneratorExit
• Python ImportError and ModuleNotFoundError
• Python IndexError
• Python KeyError
• Python MemoryError
• Python NameError
• Python OverflowError
• Python TypeError

Python Advanced

• Access the index in for loops
• Change index of a for loop
• ** operator in a function call
• * operator in a function call
• Sort a list of tuples by value
• Transpose list of tuples
• Calculate Euclidean distance btween two points
• Resize an image and keep its aspect ratio
• Check number
• Generate random integers

How to get current directory and file path in Python

To get the current directory and the file path of the currently executing script in Python, you can use the os and os.path modules from the Python standard library.

Here's an example:

import os

# Get the current directory
current_directory = os.getcwd()

# Print the current directory
print("The current directory is:", current_directory)

In this example, we import the os module and use the os.getcwd() function to get the current directory as a string. Then, we print the current directory.

To get the file path of the currently executing script, you can use the __file__ attribute in combination with the os.path module:

import os

# Get the absolute path of the currently executing script
script_path = os.path.abspath(__file__)

# Print the script path
print("The script path is:", script_path)

In this example, we use the __file__ attribute, which returns the relative path of the currently executing script, and the os.path.abspath() function to convert the relative path to an absolute path. Then, we print the script path.

Please note that the __file__ attribute may not work as expected when running the script interactively, such as in a Python shell or a Jupyter Notebook. In such cases, you can use the os.path.realpath() function with the __file__ attribute to get the correct file path:

import os

# Get the absolute path of the currently executing script
script_path = os.path.realpath(__file__)

# Print the script path
print("The script path is:", script_path)

In this example, we use the os.path.realpath() function with the __file__ attribute to get the absolute path of the currently executing script.

1. Get current directory in Python:

   import os
   
   current_directory = os.getcwd()
   print(f"Current directory: {current_directory}")
   

2. Get current file path in Python:

   import os
   
   current_file_path = os.path.abspath(__file__)
   print(f"Current file path: {current_file_path}")
   

3. Current file path using file in Python:

   current_file_path = os.path.realpath(__file__)
   print(f"Current file path using file: {current_file_path}")
   

4. Using pathlib.Path() for current file path in Python:

   from pathlib import Path
   
   current_file_path = Path(__file__).resolve()
   print(f"Current file path using pathlib: {current_file_path}")
   

5. Get current directory and file path separately in Python:

   import os
   
   current_directory = os.path.dirname(os.path.abspath(__file__))
   current_file_name = os.path.basename(__file__)
   
   print(f"Current directory: {current_directory}")
   print(f"Current file name: {current_file_name}")
   

6. Current file path with os.path.join() in Python:

   import os
   
   current_file_path = os.path.join(os.getcwd(), __file__)
   print(f"Current file path using os.path.join(): {current_file_path}")
   

7. Get current directory and file name without extension in Python:

   import os
   
   current_directory = os.path.dirname(os.path.abspath(__file__))
   current_file_name = os.path.splitext(os.path.basename(__file__))[0]
   
   print(f"Current directory: {current_directory}")
   print(f"Current file name without extension: {current_file_name}")
   

8. Finding parent directory in Python script:

   import os
   
   parent_directory = os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir))
   print(f"Parent directory: {parent_directory}")
   

9. Get current file path with sys.argv[0] in Python:

   import sys
   
   current_file_path = os.path.abspath(sys.argv[0])
   print(f"Current file path using sys.argv[0]: {current_file_path}")
   

10. Python pathlib.Path.cwd() for current working directory:

    from pathlib import Path
    
    current_working_directory = Path.cwd()
    print(f"Current working directory using pathlib: {current_working_directory}")