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patch 8.0.1451: difficult to set the python home directories properly

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Problem:    It is difficult to set the python home directory properly for
            Python 2.7 and 3.5 since both use $PYTHONHOME.
Solution:   Add the 'pythonhome' and 'pythonthreehome' options. (Kazuki
            Sakamoto, closes #1266)
This commit is contained in:
Bram Moolenaar
2018-01-31 21:49:05 +01:00
parent 1dd45fb4f3
commit 94073167e3
8 changed files with 86 additions and 6 deletions
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15
src/if_python3.c
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@@ -842,6 +842,8 @@ python3_loaded(void)
}
#endif
static wchar_t *py_home_buf = NULL;
static int
Python3_Init(void)
{
@@ -857,11 +859,18 @@ Python3_Init(void)
init_structs();
if (*p_py3home != NUL)
{
size_t len = mbstowcs(NULL, (char *)p_py3home, 0) + 1;
/* The string must not change later, make a copy in static memory. */
py_home_buf = (wchar_t *)alloc(len * sizeof(wchar_t));
if (py_home_buf != NULL && mbstowcs(
py_home_buf, (char *)p_py3home, len) != (size_t)-1)
Py_SetPythonHome(py_home_buf);
}
#ifdef PYTHON3_HOME
# ifdef DYNAMIC_PYTHON3
if (mch_getenv((char_u *)"PYTHONHOME") == NULL)
# endif
else if (mch_getenv((char_u *)"PYTHONHOME") == NULL)
Py_SetPythonHome(PYTHON3_HOME);
#endif