Python Loop and Append to String

Question

I have a string field and an array of numbers. When I iterate through the list I should get the string to append with the number from the array.

At the moment, it only returns the string + current position of the array. The following is my code. How could I solve this?

digit_list = list(map(int, str(extra_digits)))
pi_local = "PI"
for digit in range(len(digit_list)):
    pi_local = pi_local + str(digit_list[counter])
    pi_label.config(text = pi_local)

initial incorrect output

I have tried the suggestion below by trying to iterate over the list, but I am still not getting the right result. full code is below

pi = "PI"
extra_digits = "159265358979323846"


counter = 0
init = 2

#digit_list = list(map(int, str(extra_digits)))



def button_pressed():
    global counter
    global pi
    #global digit_list
    global init
    digit_list = list(map(int, str(extra_digits)))
    our_label.config(text="Pi to " + str(init+counter) + " decimals")
    pi_local = pi
    for digit in digit_list:
        pi_local = pi_local + str(digit)
        pi_label.config(text = str(digit))
        #pi_label.config(text = str(pi) + str(digit_list[counter]))
    counter = counter +  1

The output I am getting is Current incorrect output after using solution below

could you clarify with given input output example what you expected — Beny Gj
– Beny Gj, Commented Apr 26, 2020 at 9:38
What is ˋcounterˋ? Are you aware that you can directly iterate over a list, without indexing? Why do you convert your input to a list of integers, when you only need a string? — MisterMiyagi
– MisterMiyagi, Commented Apr 26, 2020 at 9:39
What is your expected output? Also, please add your observed output as text instead of pictures. — MisterMiyagi
– MisterMiyagi, Commented Apr 26, 2020 at 16:57

halfer · Accepted Answer · 2021-01-29 00:20:15Z

1

In [77]: pi_local = "PI"                                                                                                                                                                                    

In [78]: digit_list = [1,3,5,2]                                                                                                                                                                             

In [79]: [str(i) + pi_local for i in digit_list]                                                                                                                                                            
Out[79]: ['1PI', '3PI', '5PI', '2PI']

edited Jan 29, 2021 at 0:20

halfer

20.2k20 gold badges110 silver badges207 bronze badges

answered Apr 26, 2020 at 9:41

Mayank Porwal

34.2k9 gold badges45 silver badges65 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Huy Tran · Accepted Answer · 2020-04-26 09:44:41Z

0

You need to iterate through the elements in digit_list

digit_list = list(map(int, str(extra_digits)))
pi_local = "PI"
for digit in digit_list:
    pi_local = pi_local + str(digit)
    pi_label.config(text = pi_local)

answered Apr 26, 2020 at 9:44

Huy Tran

1,9223 gold badges25 silver badges44 bronze badges

2 Comments

Sarath Over a year ago

Hi, My source data is as follows extra_digits = "159265358979323846" and I converted that to a list map as well using digit_list = list(map(int, str(extra_digits)))

Sarath Over a year ago

My requirement is that each time I click on the Next Digit button it appends the digit at the particular counter to my string being printed.

Collectives™ on Stack Overflow

Python Loop and Append to String

2 Answers 2

Comments

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related