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Made 'check_environ()' "public" by stripping the leading underscore;

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added a global '_environ_checked' so we know if it's already been
called.
This commit is contained in:
Gregory P. Smith 2000-05-12 00:40:00 +00:00
parent 6cd0c43366
commit e7e35ac1c2
1 changed files with 9 additions and 2 deletions
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11
Lib/distutils/util.py
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@ -111,7 +111,8 @@ def change_root (new_root, pathname):
"nothing known about platform '%s'" % os.name
def _check_environ ():
_environ_checked = 0
def check_environ ():
"""Ensure that 'os.environ' has all the environment variables we
guarantee that users can use in config files, command-line
options, etc. Currently this includes:
@ -120,6 +121,10 @@ def _check_environ ():
and OS (see 'get_platform()')
"""
global _environ_checked
if _environ_checked:
return
if os.name == 'posix' and not os.environ.has_key('HOME'):
import pwd
os.environ['HOME'] = pwd.getpwuid (os.getuid())[5]
@ -127,6 +132,8 @@ def _check_environ ():
if not os.environ.has_key('PLAT'):
os.environ['PLAT'] = get_platform ()
_environ_checked = 1
def subst_vars (str, local_vars):
"""Perform shell/Perl-style variable substitution on 'string'.
@ -138,7 +145,7 @@ def subst_vars (str, local_vars):
'_check_environ()'. Raise ValueError for any variables not found in
either 'local_vars' or 'os.environ'."""
_check_environ ()
check_environ ()
def _subst (match, local_vars=local_vars):
var_name = match.group(1)
if local_vars.has_key (var_name):