Shubham SayonSummary: The most straightforward way to overwrite the previous print to stdout is to set the carriage return (‘\r’) character within the print statement as print(string, end = “\r”). This returns the next stdout line to the beginning of the line without proceeding to the next line. Problem Formulation Problem Definition: How will you overwrite … Read more
To update a key in a dictionary if it doesn’t exist, you can check if it is present in the dictionary using the in keyword along with the if statement, and then update the key-value pair using subscript notation or update() method or the asterisk * operator. This approach will be examined in Section 1 … Read more
Summary: To print colored text in Python, you can use: The simple_color package, The ‘\033[1m’ ANSI escape-sequence, The termcolor module, The coloroma package, The colored library, The prompt_toolkit package. A simple, no-library way to print bolded text in Python is to enclose a given string s in the special escape sequence like so: print(“\033[38;5;4m”). We’ll … Read more
Problem Formulation Given an image, how to get the size of the image with PIL or any other Python library? Getting the size of an image with Python PIL(Python Image Library) basically implies that you want to get its height and width in pixels. Example: Consider the following image: 🔥Challenge: Get the size of the … Read more
[toc] Problem: Given a datetime.datetime object in Python, is there a way to add time to the given datetime object? Related Question on StackOverflow: Discussion: Adding time to a datetime object in Python should lead to a new datetime object with the updated time information. For example, if you add 5 hours to a datetime … Read more
A simple, no-library way to print bolded text in Python is to enclose a given string s in the special escape sequence like so: print(“\033[1m” + s + “\033[0m”). We’ll discuss this most Pythonic solution in Method 2 in this article. You can change your text to bold, italic, and underlined in Python. Not only … Read more
[toc] Summary: Use the string literal syntax f”{number:.nf}” to suppress the scientific notation of a number to its floating-point representation. Problem Formulation: How will you suppress a number represented in scientific notation by default to a floating-point value? Note: Generally, Python represents huge floating-point numbers or very small floating-point numbers in their scientific form. Scientific … Read more
[toc] Problem: Given a CSV file, how to read only specific column(s) from the csv file? (Reading a specific column from a csv file will yield all the row values pertaining to that column.) Example: Consier the following csv file (countries.csv): Question: How will you read the above csv file and display the following columns … Read more
[toc] Problem Formulation: Let’s say we have a directory containing other subdirectories which further contain files. How do we search for a specific file in the subdirectories in our Python script? Scenario: We have a parent folder (Parent) with child folders (child_1, child_2, and child_3). There are files in the parent directory/folder as well as … Read more
Summary: os.path.basename(path) enables us to get the file name from the path, no matter what the os/path format. Another workaround is to use the ntpath module, which is equivalent to os.path. ✨Problem: How to extract the filename from a path, no matter what the operating system or path format is? For example, let’s suppose that … Read more
Summary: You can evaluate the execution time of your code by saving the timestamps using time.time() at the beginning and the end of your code. Then, you can find the difference between the start and the end timestamps that results in the total execution time. [toc] Problem: Given a Python program; how will you measure … Read more
Summary: There are primarily two ways of installing a package with a specific version using pip – pip install -Iv package-name == version pip install -v package-name == version Problem Statement: How to install a specific package version with pip in Python? In Python, pip is a command and tool used to install, update and … Read more