if not my_list: print("List is empty") This is using the Truth Value Testing in Python, also known as implicit booleaness or truthy/falsy value testing.Among other rules it defines that empty sequences and collections like '', (), [], {}, set(), range(0) are all considered false...
# Python program to check if any list element# is present in tuple# Creating and printing lists and tuplesmyTuple=(5,1,8,3,9)print("The tuple elements are "+str(myTuple)) myList=[2,4,7,8,0]print("The list elements are "+str(myList))# Checking if any list element# is presen...
for checksign in input_str: if checksign[0] == '/' or checksign[0] == '*': print('ERROR:这边是加法计算,但是有乘除运算符,计算出错!!!',checksign) exit() ###循环,到所有加减都计算完为止 while len(input_str)!=1 : ###正正相加如1+4 if input_str[0][0]=='' and input_str[...
empty sequences and collections: '', (), [], {}, set(), range(0) As an empty list is in fact just an empty collection, it will be converted to a boolean value of False. Therefore, if py_list is empty, it will be converted to False. The second statement is pretty similar, exc...
Learn how to check if a Python list contains a specific element with easy examples. Master list manipulation and element searching efficiently.
Checking if an index exists in a Python list is a common task to ensure that the index is within the acceptable range before trying to modify or access an element. Python lists are zero-indexed, meaning the first element is at index0, the second at index1, and so on. ...
from datetime import datetime def is_date_in_range(date, start_date, end_date): return start_date <= date <= end_date date = datetime(2023, 5, 25) start_date = datetime(1991, 1, 1) end_date = datetime(2023, 12, 31) if is_date_in_range(date, start_date, end_date): print(...
Python Program To Check Whether The Given List Is Valley Or Not def valley(l): if (len(l) < 3): return False up_count = 1 low_count = 1 for i in range(0, len(l) - 1): if l[i] > l[i + 1]: if low_count > 1: return False up_count = up_count + 1 if l[i] <...
Using this result we can check if both tuple lists are identical or not. Note: Thecmp()method is supported in Python 2. # Python program to check if two lists of# tuples are identical or not# Initializing and printing list of tuplestupList1=[(10,4), (2,5)] ...
Python Code: # Define a function named 'test_range' that checks if a number 'n' is within the range 3 to 8 (inclusive) def test_range(n): # Check if 'n' is within the range from 3 to 8 (inclusive) using the 'in range()' statement ...