Python increment variable with for loop

Question

I am trying to increase a variable in a for loop dynamicly .

first iteration: i=i+4

second iteration: i= i+5

third iteration i= i+6 ....

Trying:

first iteration

    for i in d:         # d has lenght 2 
      i=i+4 # i = 17 
      sheet.insert_rows(idx=i, amount=1)

after the first iteration the value of i is now 23.

now do this:

second interation

      for i in d:         # d has lenght 2 
      i=i+5 # i = 28
      sheet.insert_rows(idx=i, amount=1)

for i in d gives i the values contained in d.

interjay
– interjay

2021-06-16 13:51:29 +00:00
Commented Jun 16, 2021 at 13:51 — interjay
– interjay, Commented Jun 16, 2021 at 13:51
what do you mean with manage i manually

124747chdhsgxj
– 124747chdhsgxj

2021-06-16 13:51:46 +00:00
Commented Jun 16, 2021 at 13:51 — 124747chdhsgxj
– 124747chdhsgxj, Commented Jun 16, 2021 at 13:51

Nishant Nawarkhede · Accepted Answer · 2021-06-16 14:02:02Z

2

You can do it using enumerate,

from docs,

Return an enumerate object. iterable must be a sequence, an iterator, or some other object which supports iteration. The next() method of the iterator returned by enumerate() returns a tuple containing a count (from start which defaults to 0) and the values obtained from iterating over iterable.

>>> for index, i in enumerate([3, 4], start=4):
...     print(index, i)
...
4 3
5 4
>>>

edited Jun 16, 2021 at 14:02

answered Jun 16, 2021 at 13:50

Nishant Nawarkhede

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Comments

cbrr09 · Accepted Answer · 2021-06-16 14:12:00Z

0

You don't need the i=i+4 operation, try this out.

x = 4
d = [1, 2]  # i assume you have list like this
for i in d:
    x += 1
    sheet.insert_rows(idx=x, amount=1)

answered Jun 16, 2021 at 14:12

cbrr09

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