Freestyle Sparring

def feed_the_primates(animals: list, food: list) -> list:
     return 'No bananas!' if "🍌" not in food else list(map(lambda a: f"🍌{a}", filter(lambda m: m if m in ["🐒", "🦍"] else None, animals)))

def days(month,day):
    return ((y := d.date)((x := d.datetime.now().year), month, day) - y(x, 1, 1)).days + 1

#Feel free to add some more, this is far from finished. Just a couple notes:
#
#Don't modify things that arn't yours without a reason.
#
#If you DO change someone else's, please leave a comment/note in description saying why you did so.
#
#P.s if you don't like the formatting, let me know.
# ================
# Basic search/lookup    
# ================
# find a word.
word = "bacon"

# Find a letter.
letter = "[b]"

# Find each of the given letters.
list_of_letters = "[bacon]"

# Find any letter NOT given.
exclude = "[^bacon]"

# Find all lowercase letters.
lowercase = "[a-z]"

# Find all uppercase letters.
uppercase = "[A-Z]"

# Find/exlude all letters.
all_letters, no_letters = "[A-Za-z]", "[^A-Za-z]"

# Find literaly anything.
wild_card = "."

# Find either A or B.
alternate = "bacon|eggs"

# Find a given character catagory.
any_space = "\s"
any_digit = "\d"
any_digit_letter_or_underscore = '\w'

# Find anything but a given catagory.
no_space = "\S"
no_digit = "\D"
no_digit_letter_or_underscore = '\W'
# ================
# Grouping   
# ================
# Group a regex match, no name or ID.
group = "bacon (?:and eggs)"

# Group with assigned ID, starts at 1. 
group_with_id = "bacon and (eggs)"

# Group with assigned name.
group_with_name = "(?P<food>bacon|eggs)"

# Group that gets ignored.
commented_group = "(?#mmmmm bacon is tasty)"

# Using a group id - the following will match "bacon, eggs, and bacon".
using_group_id = "(bacon), eggs, and \1"

# ================
# Quantifiers   
# ================
# 0 or 1 - "" or "bacon".
zero_or_one = "(bacon)?" 

# 0 or More - "" to "baconbaconbaconbacon...".
zero_or_more = "(bacon)*"

# One or More - "bacon" to "baconbaconbacon....".
one_or_more = "(bacon)+"

# An exact amount of matches - the following will match "baconbaconbacon".
exact_number_of_matches = "(bacon){3}"

# X or more matches
x_or_more_matches = "(bacon){3,}"

# Match between a specified range
range_count_matches = "(bacon){3,100}"
# ===============
# String Escapes (not exclusive to regex)
# ================
single_quote = '\''	

double_quotes = "\""

back_slash = '\\'

new_line = '\n'

carriage_return = '\r'

tab = '\t'	

space = '\s'

backspace = '\b'

form_feed = '\f'

octal = '\ooo'

hex_value = '\x00'