Rajendra Dharmkar has Published 453 Articles

What is the difference between a python module and a python package?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 11-Aug-2023 14:36:34

2K+ Views

In Python, both modules and packages are used to organize and structure code, but they serve slightly different purposes. A Python module is a single file containing Python code that can be imported and used in other Python code. A module can define variables, functions, classes, and other Python constructs ... Read More

What is an efficient way to repeat a string to a certain length in Python?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 11-Aug-2023 14:29:35

452 Views

One efficient way to repeat a string to a certain length in Python is to use the string multiplication operator (*) and string concatenation. Here are some code examples with step−by−step explanations: Using string multiplication operator Example Define the original string and the desired length to repeat it to. Calculate ... Read More

What is a Python bytestring?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 11-Aug-2023 14:25:20

1K+ Views

A Python bytestring is a sequence of bytes. In Python 3, bytestrings are represented using the "bytes" data type. Bytestrings are used to represent binary data that doesn't fit into the Unicode character set, such as images, audio, and video files. Here are some code examples that demonstrate working with ... Read More

How to use multiple modules with Python import Statement?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 11-Aug-2023 14:16:53

6K+ Views

In Python, you can use the import statement to use functions or variables defined in another module. Here are some code examples that demonstrate how to use multiple modules with Python import statement: Suppose you have two modules module1.py and module2.py that contain some functions: Example #module1.py def say_hello(name): ... Read More

How to translate a python string according a given dictionary?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 11-Aug-2023 11:13:19

1K+ Views

To translate a Python string according to a given dictionary, you can use the translate() method in combination with str.maketrans() function. The str.maketrans() function creates a translation table from a given dictionary that maps each character in the dictionary to its corresponding translation. Here are some examples: Translate a string ... Read More

How to strip down all the punctuation from a string in Python?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 11-Aug-2023 11:06:59

631 Views

Stripping down all the punctuation from a string in Python can be achieved using various methods. Here are some examples: Using string.punctuation Example The string.punctuation constant contains all the ASCII punctuation characters. We can use this constant to remove all the punctuation characters from the string. We are using a ... Read More

How to remove specific characters from a string in Python?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 11-Aug-2023 10:43:59

1K+ Views

Here, we are considering some code examples to remove specific characters from a string in Python: Using str.replace() In this method, we will use the str.replace() method to replace the specific characters with an empty string. Example We define a string called my_string that contains the original string we want ... Read More

How to process escape sequences in a string in Python?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 11-Aug-2023 10:38:19

1K+ Views

In Python, escape sequences are special characters that are used to represent certain characters that cannot be easily typed or printed. They are typically represented with a backslash (\) followed by a character that represents the special sequence. For example, the newline character () is used to represent a line ... Read More

How to pass arguments by reference in a Python function?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 10-Aug-2023 21:12:00

476 Views

In Python, you cannot pass arguments by reference like you can in other programming languages like C++. However, there is a way to simulate pass by reference behavior in Python using mutable data types like lists and dictionaries. In Python, arguments are passed by assignment, which means that the ... Read More

How to handle invalid arguments with argparse in Python?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 10-Aug-2023 21:09:39

925 Views

Argparse is a Python module used to create user-friendly command-line interfaces by defining program arguments, their types, default values, and help messages. The module can handle different argument types and allows creating subcommands with their own sets of arguments. Argparse generates a help message that displays available options and how ... Read More

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