Linux installer for calibre 1.26 does not work on CentOS 6.5

[G. Franke]

The new Linux-installer used for calibre 1.26 requires at least Python 3.2.
This is because the attribute 'source_address' of class HTTPSConnection was introduced with that version.
As CentOS 6.5 uses Python 2.6 the installation fails with:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "<string>", line 634, in main
  File "<string>", line 596, in download_and_extract
  File "<string>", line 588, in get_tarball_info
  File "<string>", line 556, in get_https_resource_securely
  File "<string>", line 478, in connect
AttributeError: HTTPSConnection instance has no attribute 'source_address'

[Kovid Goyal (kovid)]

source_address was added in python 2.7 not 3.x, which was released
almost four years ago. However, I will investigate if supporting python
2.6 is possible.

[Kovid Goyal (kovid)]

Fixed in branch master. The fix will be in the next release. calibre is usually released every Friday.

 status fixreleased

[Kovid Goyal (kovid)]

I have already implemented the fix, just re-run the install command and
you should be fine.

[G. Franke (g-franke)]

Works now. Thanks!