migrate to Python 3

[doronbehar]

README says pdfsizeopt isn't supported by python 3.x. Are there any plans to upgrade to Python3?

[zvezdochiot]

pdfsizeopt/pdfsizeopt

Lines 25 to 28 in 33ec5e5

	if not ((2, 4) <= sys.version_info[:2] < (3, 0)):
	sys.stderr.write(
	'fatal: Python version 2.4, 2.5, 2.6 or 2.7 needed for: %s\n' % __file__)
	sys.exit(1)

[pts]

Most users of pdfsizeopt shouldn't care, because on Windows pdfsizeopt ships with a copy of Python 2.6 embedded, and on Linux and macOS Python 2 is still available and preinstalled (as of 2020-02-19).

There is no technical reason why pdfsizeopt can't be migrated to Python 3. It's just takes time and effort. It's unlikely to happen until somebody volunteers and does the work or pdfsizeopt receives funding.

[pts]

Update: Now the Linux, macOS and Windows helper programs (part of the installation instructions) all contain a copy of Python 2, so pdfsizeopt will work on systems where Python 2 is not installed (i.e. most modern systems nowadays).

[malespiaut]

Hello,

I'm commenting on this issue because I consider that it shouldn't be closed. In my humble opinion, relying on Python 2, or Docker, is not a viable option.

Although I perfectly understand that migrating to Python 3 needs time, effort, and money, I've been unable to use pdfsizeopt on my machine. I'm sad to now consider pdfsizeopt as unusable.