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Python - Check if list contain particular digits
When it is required to check if a list contains particular digits, the ‘join’ method, and a simple iteration are used.
Example
Below is a demonstration of the same
my_list = [415, 133, 145, 451, 154]
print("The list is :")
print(my_list)
my_digits = [1, 4, 5, 3]
digit_string = ''.join([str(ele) for ele in my_digits])
all_elems = ''.join([str(ele) for ele in my_list])
my_result = True
for element in all_elems:
for ele in element:
if ele not in digit_string:
my_result = False
break
if(my_result == True):
print("All elements have been made from required digits")
else:
print("All elements haven't been made from required digits")Output
The list is : [415, 133, 145, 451, 154] All elements have been made from required digits
Explanation
A list is defined and is displayed on the console.
Another list with integers is defined.
The list comprehension is used to iteated through the second list, and join them.
This is assigned to a variable.
Another list comprehension is used to iterate over the first list and join them.
This is assigned to another variable.
Another result variable is initially assigned to ‘True’.
The second variable is iterated over, and if it is not found in the first variable, the result variable is assigned to ‘False’.
If result is still ‘True’ after coming out of the condition, relevant message is displayed on the console.
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