How to get 09 as an integer in python(odoo)?

Question

I have been trying this code to get the september month as 09 in my code, but later i come to know that 09 is not acceptable in python. But it may displayed as a string only. My question is how to diplay the 09 as an integer?

My code:

    september_month = dt.datetime(int(self.year.name),09,30)   
    print september_month

Error: Invalid token 09 and ValueError: day is out of range for month

This python program runs in odoo version 10 python2.7

You can't. `09` as an integer is the same as `9` as an integer. If you want to display the leading `0`, format it as a string. Also, in older version of Python, like 2.7, numbers starting with `0` are interpreted as octal, probably leading to much confusion. — tobias_k, Jul 05 '18 at 13:10
Beware, in python, an integer beginning with a '0' is interpreted as an octal number, thus 09 is invalid and might raise a SyntaxError with invalid token (08 would do the same) — Thibault D., Jul 05 '18 at 13:13
Check [this question](https://stackoverflow.com/questions/11620151/what-do-numbers-starting-with-0-mean-in-python). Also [this PEP](https://www.python.org/dev/peps/pep-3127/) may be useful — Ketan Mukadam, Jul 05 '18 at 13:17
Why do you need to write the month parameter of `datetime()` with a leading zero? Just wondering. — CZoellner, Jul 05 '18 at 15:53

score 3 · Answer 1 · edited Oct 12 '20 at 12:25

3

In Python (in any version), a literal like 09 is interpreted as an octal literal. The value of 9 is therefore invalid.

If you really want to see the 09 you could write a string and convert to integer using int("09"). In your code:

september_month = dt.datetime(int(self.year.name),int("09"),int("30"))   
print september_month

Not sure whether this helps readability, really.

edited Oct 12 '20 at 12:25

Gino Mempin

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answered Jul 09 '18 at 20:55

miw

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score 1 · Answer 2 · answered Jul 05 '18 at 13:10

1

It's not possible in Python 3 to write int values as 01,02,09 etc.

answered Jul 05 '18 at 13:10

Taohidul Islam

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I asked for python 2.7 – Navi Jul 05 '18 at 13:21

score 1 · Answer 3 · edited Oct 12 '20 at 12:25

1

Man, it works, your problem is that there is no 31 of september

edited Oct 12 '20 at 12:25

Gino Mempin

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answered Jul 05 '18 at 13:30

vandaele mathias

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score 1 · Answer 4 · edited Oct 12 '20 at 13:08

1

If you want to display the leading 0, format your number as a string:

"{:02d}".format(your_number)

edited Oct 12 '20 at 13:08

JeffUK

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answered Oct 12 '20 at 11:33

Dourave

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score 0 · Answer 5 · answered Jul 05 '18 at 13:13

0

https://docs.python.org/3.6/library/datetime.html

Datetime knows what 9 is, no need to put 09

answered Jul 05 '18 at 13:13

vandaele mathias

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may be not in 2.7 – Navi Jul 05 '18 at 13:29

How to get 09 as an integer in python(odoo)?

5 Answers5