Category: Python Answers

Sometimes, we want to check what version of Python is running a script.

In this article, we’ll look at how to check what version of Python is running a script.

How to check what version of Python is running a script?

To check what version of Python is running a script, we can use the sys.version property.

For instance, we write

import sys

print(sys.version)

to print the version out by using sys.version.

Conclusion

To check what version of Python is running a script, we can use the sys.version property.

Sometimes, we want to display text with font and color with Python pygame.

In this article, we’ll look at how to display text with font and color with Python pygame.

How to display text with font and color with Python pygame?

To display text with font and color with Python pygame, we can call pynamd.font.SysFont to set the font.

And we call render to set the color.

For instance, we write

my_font = pygame.font.SysFont("monospace", 15)

label = my_font.render("hello!", 1, (255, 255, 0))
screen.blit(label, (100, 100))

to call pygame.font.SysFont with the font name and size.

And then we call my_font.render with the text to render and a tuple with the rgb color values as the 3rd argument.

Conclusion

To display text with font and color with Python pygame, we can call pynamd.font.SysFont to set the font.

Sometimes, we want to find all matches to a regular expression in Python.

In this article, we’ll look at how to find all matches to a regular expression in Python.

How to find all matches to a regular expression in Python?

To find all matches to a regular expression in Python, we can use the re.findall method.

For instance, we write

m = re.findall( r'all (.*?) are', 'all cats are smarter than dogs, all cats are dogs')

to call re.findall to search for all matches of words between ‘all’ and ‘are’ by calling it with r'all (.*?) are' and 'all cats are smarter than dogs, all cats are dogs'.

Conclusion

To find all matches to a regular expression in Python, we can use the re.findall method.

Sometimes, we want to convert an integer to a string in any base with Python.

In this article, we’ll look at how to convert an integer to a string in any base with Python.

How to convert an integer to a string in any base with Python?

To convert an integer to a string in any base with Python, we can create our function.

For instance, we write

def number_to_base(n, b):
    if n == 0:
        return [0]
    digits = []
    while n:
        digits.append(int(n % b))
        n //= b
    return digits[::-1]

to create the number_to_base function.

In it, we have a while loop that keeps append the remaining when dividing a by b converted to an int into the digits list.

And then we divide n by b, round it to an int, and assign the result to b

Once n is 0, we return a copy of the digits` list.

Conclusion

To convert an integer to a string in any base with Python, we can create our function.

Sometimes, we want to scroll a web page using Selenium webdriver in Python.

In this article, we’ll look at how to scroll a web page using Selenium webdriver in Python.

How to scroll a web page using Selenium webdriver in Python?

To scroll a web page using Selenium webdriver in Python, we can run the JavaScript window.scrollTo method.

For instance, we write

driver.execute_script("window.scrollTo(0, y)") 

to call window.scrollTo on the opened page to scroll to vertical position y.

Conclusion

To scroll a web page using Selenium webdriver in Python, we can run the JavaScript window.scrollTo method.