Write a python program to get a string made of the first 2 and the last 2 chars from a given a string. if the string length is less than 2, return instead of the empty string.

Python String: Exercise-17 with Solution Write a Python function to get a string made of 4 copies of the last two characters of a specified string (length must be at least 2). Sample Solution:- Python Code: def insert_end(str): sub_str = str[-2:] return sub_str * 4 print(insert_end('Python')) print(insert_end('Exercises')) Sample Output: onononon eseseses Flowchart: Visualize Python code execution: The following tool visualize what the computer is doing step-by-step as it executes the said program: Python Code Editor: Have another way to solve this solution? Contribute your code (and comments) through Disqus. Previous: Next: Python: Tips of the Day Does Python have a ternary conditional operator? The expression syntax is: a if condition else b First condition is evaluated, then exactly one of either a or b is evaluated and returned based on the Boolean value of condition. If condition evaluates to True, then a is evaluated and returned but b is ignored, or else when b is evaluated and returned but a is ignored. This allows short-circuiting because when condition is true only a is evaluated and b is not evaluated at all, but when condition is false only b is evaluated and a is not evaluated at all. Example: >>> 'true' if True else 'false' >>> 'true' if False else 'false' Output: 'true' 'false' Note that conditionals are an expression, not a statement. This means you can't use assignment statements or pass or other statements within a conditional expression: Example: >>> pas...

Hi, in this article we will learn Python Program to Get a String Made of The First 2 And The Last 2 Chars From a Given a String. If The String Length is Less Than 2, Return Instead of The Empty String The problem statement is given a string you have to gt first two characters and last two characters of that string and return it. If the length of the string is less than 2 then return the null string "" To get the first two and last two characters of a string we can use string slicing method [:2] and [-2:] will get the first two and last two characters of string respectively. Phase 1 : Define the function to take input argument as string and return the string. If string length is less than 2 return empty string. else return the first two and last two characters. def get_string(text): if len(text) < 2: return "" return text[:2] + text[-2:] Phase 2 : In this section of implementation ask user to enter a string and accept it. Then call the function get_string() by providing the string input to the function. my_string = input("Enter a string :") print("New modified string is : ", get_string(my_string)) Final program :

This one is the right way to grab the first two characters. You answered the OP just right, so upvote. However, I would never use a function for this. I prefer to make it explicit in the code without having to chase down functions for verification. As in firsttwo = somestring[:2] in-line in the main code In python strings are list of characters, but they are not explicitly list type, just list-like (i.e. it can be treated like a list). More formally, they're known as sequence (see >>> a = 'foo bar' >>> isinstance(a, list) False >>> isinstance(a, str) True Since strings are sequence, you can use slicing to access parts of the list, denoted by list[start_index:end_index] see >>> a = [1,2,3,4] >>> a[0] 1 # first element, NOT a sequence. >>> a[0:1] [1] # a slice from first to second, a list, i.e. a sequence. >>> a[0:2] [1, 2] >>> a[:2] [1, 2] >>> x = "foo bar" >>> x[0:2] 'fo' >>> x[:2] 'fo' When undefined, the slice notation takes the starting position as the 0, and end position as len(sequence). In the olden C days, it's an array of characters, the whole issue of dynamic vs static list sounds like legend now, see

Here's my code: # B. both_ends # Given a string s, return a string made of the first 2 # and the last 2 chars of the original string, # so 'spring' yields 'spng'. However, if the string length # is less than 2, return instead the empty string. def both_ends(s): if len(s) Traceback (most recent call last): File "C:\Users\Sergio\Desktop\google-python-exercises\google-python-exercises\basic\string1.py", line 120, in main() File "C:\Users\Sergio\Desktop\google-python-exercises\google-python-exercises\basic\string1.py", line 97, in main test(both_ends('spring'), 'spng') File "C:\Users\Sergio\Desktop\google-python-exercises\google-python-exercises\basic\string1.py", line 44, in both_ends return s[0] + s[1] + s[len(s)-2] + s[len(s-1)] TypeError: unsupported operand type(s) for -: 'str' and 'int' Thanks for the help guys. :D

This one is the right way to grab the first two characters. You answered the OP just right, so upvote. However, I would never use a function for this. I prefer to make it explicit in the code without having to chase down functions for verification. As in firsttwo = somestring[:2] in-line in the main code In python strings are list of characters, but they are not explicitly list type, just list-like (i.e. it can be treated like a list). More formally, they're known as sequence (see >>> a = 'foo bar' >>> isinstance(a, list) False >>> isinstance(a, str) True Since strings are sequence, you can use slicing to access parts of the list, denoted by list[start_index:end_index] see >>> a = [1,2,3,4] >>> a[0] 1 # first element, NOT a sequence. >>> a[0:1] [1] # a slice from first to second, a list, i.e. a sequence. >>> a[0:2] [1, 2] >>> a[:2] [1, 2] >>> x = "foo bar" >>> x[0:2] 'fo' >>> x[:2] 'fo' When undefined, the slice notation takes the starting position as the 0, and end position as len(sequence). In the olden C days, it's an array of characters, the whole issue of dynamic vs static list sounds like legend now, see

Python String: Exercise-17 with Solution Write a Python function to get a string made of 4 copies of the last two characters of a specified string (length must be at least 2). Sample Solution:- Python Code: def insert_end(str): sub_str = str[-2:] return sub_str * 4 print(insert_end('Python')) print(insert_end('Exercises')) Sample Output: onononon eseseses Flowchart: Visualize Python code execution: The following tool visualize what the computer is doing step-by-step as it executes the said program: Python Code Editor: Have another way to solve this solution? Contribute your code (and comments) through Disqus. Previous: Next: Python: Tips of the Day Does Python have a ternary conditional operator? The expression syntax is: a if condition else b First condition is evaluated, then exactly one of either a or b is evaluated and returned based on the Boolean value of condition. If condition evaluates to True, then a is evaluated and returned but b is ignored, or else when b is evaluated and returned but a is ignored. This allows short-circuiting because when condition is true only a is evaluated and b is not evaluated at all, but when condition is false only b is evaluated and a is not evaluated at all. Example: >>> 'true' if True else 'false' >>> 'true' if False else 'false' Output: 'true' 'false' Note that conditionals are an expression, not a statement. This means you can't use assignment statements or pass or other statements within a conditional expression: Example: >>> pas...

Hi, in this article we will learn Python Program to Get a String Made of The First 2 And The Last 2 Chars From a Given a String. If The String Length is Less Than 2, Return Instead of The Empty String The problem statement is given a string you have to gt first two characters and last two characters of that string and return it. If the length of the string is less than 2 then return the null string "" To get the first two and last two characters of a string we can use string slicing method [:2] and [-2:] will get the first two and last two characters of string respectively. Phase 1 : Define the function to take input argument as string and return the string. If string length is less than 2 return empty string. else return the first two and last two characters. def get_string(text): if len(text) < 2: return "" return text[:2] + text[-2:] Phase 2 : In this section of implementation ask user to enter a string and accept it. Then call the function get_string() by providing the string input to the function. my_string = input("Enter a string :") print("New modified string is : ", get_string(my_string)) Final program :

Here's my code: # B. both_ends # Given a string s, return a string made of the first 2 # and the last 2 chars of the original string, # so 'spring' yields 'spng'. However, if the string length # is less than 2, return instead the empty string. def both_ends(s): if len(s) Traceback (most recent call last): File "C:\Users\Sergio\Desktop\google-python-exercises\google-python-exercises\basic\string1.py", line 120, in main() File "C:\Users\Sergio\Desktop\google-python-exercises\google-python-exercises\basic\string1.py", line 97, in main test(both_ends('spring'), 'spng') File "C:\Users\Sergio\Desktop\google-python-exercises\google-python-exercises\basic\string1.py", line 44, in both_ends return s[0] + s[1] + s[len(s)-2] + s[len(s-1)] TypeError: unsupported operand type(s) for -: 'str' and 'int' Thanks for the help guys. :D

Here's my code: # B. both_ends # Given a string s, return a string made of the first 2 # and the last 2 chars of the original string, # so 'spring' yields 'spng'. However, if the string length # is less than 2, return instead the empty string. def both_ends(s): if len(s) Traceback (most recent call last): File "C:\Users\Sergio\Desktop\google-python-exercises\google-python-exercises\basic\string1.py", line 120, in main() File "C:\Users\Sergio\Desktop\google-python-exercises\google-python-exercises\basic\string1.py", line 97, in main test(both_ends('spring'), 'spng') File "C:\Users\Sergio\Desktop\google-python-exercises\google-python-exercises\basic\string1.py", line 44, in both_ends return s[0] + s[1] + s[len(s)-2] + s[len(s-1)] TypeError: unsupported operand type(s) for -: 'str' and 'int' Thanks for the help guys. :D

This one is the right way to grab the first two characters. You answered the OP just right, so upvote. However, I would never use a function for this. I prefer to make it explicit in the code without having to chase down functions for verification. As in firsttwo = somestring[:2] in-line in the main code In python strings are list of characters, but they are not explicitly list type, just list-like (i.e. it can be treated like a list). More formally, they're known as sequence (see >>> a = 'foo bar' >>> isinstance(a, list) False >>> isinstance(a, str) True Since strings are sequence, you can use slicing to access parts of the list, denoted by list[start_index:end_index] see >>> a = [1,2,3,4] >>> a[0] 1 # first element, NOT a sequence. >>> a[0:1] [1] # a slice from first to second, a list, i.e. a sequence. >>> a[0:2] [1, 2] >>> a[:2] [1, 2] >>> x = "foo bar" >>> x[0:2] 'fo' >>> x[:2] 'fo' When undefined, the slice notation takes the starting position as the 0, and end position as len(sequence). In the olden C days, it's an array of characters, the whole issue of dynamic vs static list sounds like legend now, see