comparison mercurial/commands.py @ 20740:535283a7f5dd

debuginstall: add Python information to debuginstall output (issue4128)

This change adds to the output of "hg debuginstall" information about the
Python being used by Mercurial.  It adds both the path to the Python
executable (i.e. the value of sys.executable) and the version of Python
(specifically the major, minor, and micro versions).

Below is an example of what the output looks like after this change.
The marked lines are the new output lines:

    $ hg debuginstall
    checking encoding (UTF-8)...
 -->showing Python executable (/Users/chris/.virtualenvs/default/bin/python)
 -->showing Python version (2.7.6)
    checking Python lib (/Users/chris/.virtualenvs/default/lib/python2.7)...
    checking installed modules (/Users/chris/mercurial)...
    checking templates (/Users/chris/mercurial/templates)...
    checking commit editor...
    checking username...
    no problems detected

Note that we use the word "showing" without an ellipsis for the new lines
because, unlike the other lines (except for "Python lib" which will be
adjusted in a subsequent commit), no check follows the display of this
information.

20739:1b4f2399f3c4

from node import hex, bin, nullid, nullrev, short
from lock import release
from i18n import _
import os, re, difflib, time, tempfile, errno
import hg, scmutil, util, revlog, copies, error, bookmarks
import patch, help, encoding, templatekw, discovery
import archival, changegroup, cmdutil, hbisect
import sshserver, hgweb, commandserver
from hgweb import server as hgweb_server

    except util.Abort, inst:
        ui.write(" %s\n" % inst)
        ui.write(_(" (check that your locale is properly set)\n"))
        problems += 1

    # Python lib
    ui.status(_("checking Python lib (%s)...\n")
              % os.path.dirname(os.__file__))

    # compiled modules
    ui.status(_("checking installed modules (%s)...\n")

20740:535283a7f5dd

from node import hex, bin, nullid, nullrev, short
from lock import release
from i18n import _
import os, re, difflib, time, tempfile, errno
import sys
import hg, scmutil, util, revlog, copies, error, bookmarks
import patch, help, encoding, templatekw, discovery
import archival, changegroup, cmdutil, hbisect
import sshserver, hgweb, commandserver
from hgweb import server as hgweb_server

    except util.Abort, inst:
        ui.write(" %s\n" % inst)
        ui.write(_(" (check that your locale is properly set)\n"))
        problems += 1

    # Python
    ui.status(_("showing Python executable (%s)\n") % sys.executable)
    ui.status(_("showing Python version (%s)\n")
              % ("%s.%s.%s" % sys.version_info[:3]))
    ui.status(_("checking Python lib (%s)...\n")
              % os.path.dirname(os.__file__))

    # compiled modules
    ui.status(_("checking installed modules (%s)...\n")