Loading...
More Python Posts
def sum_of_powers(end, power = 2, start = 1):return sum([(i) ** power for i in range(start, end + 1)])sum_of_powers(10) # 385sum_of_powers(10, 3) # 3025sum_of_powers(10, 3, 5) # 2925
def key_of_min(d):return min(d, key = d.get)key_of_min({'a':4, 'b':0, 'c':13}) # b
def print_x_pattern(size):i,j = 0,size - 1while j >= 0 and i < size:initial_spaces = ' '*min(i,j)middle_spaces = ' '*(abs(i - j) - 1)final_spaces = ' '*(size - 1 - max(i,j))if j == i:print(initial_spaces + '*' + final_spaces)else:print(initial_spaces + '*' + middle_spaces + '*' + final_spaces)i += 1j -= 1print_x_pattern(7)
from collections import defaultdictdef combine_values(*dicts):res = defaultdict(list)for d in dicts:for key in d:res[key].append(d[key])return dict(res)d1 = {'a': 1, 'b': 'foo', 'c': 400}d2 = {'a': 3, 'b': 200, 'd': 400}combine_values(d1, d2) # {'a': [1, 3], 'b': ['foo', 200], 'c': [400], 'd': [400]}
def print_pyramid_pattern(n):# outer loop to handle number of rows# n in this casefor i in range(0, n):# inner loop to handle number of columns# values changing acc. to outer loopfor j in range(0, i+1):# printing starsprint("* ",end="")# ending line after each rowprint("\r")print_pyramid_pattern(10)
# importing the modulesimport osimport shutil# getting the current working directorysrc_dir = os.getcwd()# printing current directoryprint(src_dir)# copying the filesshutil.copyfile('test.txt', 'test.txt.copy2') #copy src to dst# printing the list of new filesprint(os.listdir())