How to write multiple lines with a varying number in each line?

Question

I've been trying to create a text file using python in which I must write around 200 lines. Each line contains the same string but it contains a number that ranges from 1901 to 2100. For example,

this_is_the_string_with_a_number_xxxx_in_each_line

where xxxx varies from 1901 to 2100 (in the ascending order itself). How do I write these lines to a txt file using python?

Possible duplicate of [How to get line count cheaply in Python?](https://stackoverflow.com/questions/845058/how-to-get-line-count-cheaply-in-python) — zakharuk_pasha, May 08 '18 at 10:00

score 2 · Answer 1 · answered May 08 '18 at 10:00

2

this should do the work:

with open("my_file.txt", "w") as myfile:
   stub_string = "this_is_the_string_with_a_number_%s_in_each_line\n"
   for number in range(1901, 2100):
      string_with_number = stub_string % number
      myfile.write(string_with_number)

answered May 08 '18 at 10:00

Ali Yılmaz

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side note: `range(1901, 2100)` loops to 2099. If you want to include 2100 as well, just change it to `range(1901, 2101)` – Ashish Acharya May 08 '18 at 10:22

How to write multiple lines with a varying number in each line?

1 Answers1