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hex to rgb

Nov 19, 2022CodeCatch
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More Python Posts

Hello, python

Jan 20, 2021Ntindle

0 likes • 4 views

print(“Hello World”)

Delete all even numbers

Nov 19, 2022CodeCatch

0 likes • 0 views

# Deleting all even numbers from a list
a = [1,2,3,4,5]
del a[1::2]
print(a)

collect dictionary

Nov 19, 2022CodeCatch

0 likes • 1 view

from collections import defaultdict
def collect_dictionary(obj):
inv_obj = defaultdict(list)
for key, value in obj.items():
inv_obj[value].append(key)
return dict(inv_obj)
ages = {
'Peter': 10,
'Isabel': 10,
'Anna': 9,
}
collect_dictionary(ages) # { 10: ['Peter', 'Isabel'], 9: ['Anna'] }

Binary search algorithm

Nov 19, 2022CodeCatch

0 likes • 4 views

""" Binary Search Algorithm
----------------------------------------
"""
#iterative implementation of binary search in Python
def binary_search(a_list, item):
"""Performs iterative binary search to find the position of an integer in a given, sorted, list.
a_list -- sorted list of integers
item -- integer you are searching for the position of
"""
first = 0
last = len(a_list) - 1
while first <= last:
i = (first + last) / 2
if a_list[i] == item:
return ' found at position '.format(item=item, i=i)
elif a_list[i] > item:
last = i - 1
elif a_list[i] < item:
first = i + 1
else:
return ' not found in the list'.format(item=item)
#recursive implementation of binary search in Python
def binary_search_recursive(a_list, item):
"""Performs recursive binary search of an integer in a given, sorted, list.
a_list -- sorted list of integers
item -- integer you are searching for the position of
"""
first = 0
last = len(a_list) - 1
if len(a_list) == 0:
return ' was not found in the list'.format(item=item)
else:
i = (first + last) // 2
if item == a_list[i]:
return ' found'.format(item=item)
else:
if a_list[i] < item:
return binary_search_recursive(a_list[i+1:], item)
else:
return binary_search_recursive(a_list[:i], item)

Convert Decimal to Binary and Hexadecimal

May 31, 2023CodeCatch

0 likes • 0 views

# Prompt user for a decimal number
decimal = int(input("Enter a decimal number: "))
# Convert decimal to binary
binary = bin(decimal)
# Convert decimal to hexadecimal
hexadecimal = hex(decimal)
# Display the results
print("Binary:", binary)
print("Hexadecimal:", hexadecimal)

convert bytes to a string

Jun 1, 2023CodeCatch

0 likes • 3 views

bytes_data = b'Hello, World!'
string_data = bytes_data.decode('utf-8')
print("String:", string_data)