Cannot embed python interpreter with python=3.8.3=hcff3b4d_2

[nehaljwani]

(/tmp/nwani_1595505827/dev) wani@lenovo /t/nwani_1595505827 ❯❯❯ conda list -e python                                                                                                                 ✘ 130
# This file may be used to create an environment using:
# $ conda create --name <env> --file <this file>
# platform: linux-64
python=3.8.3=hcff3b4d_2
(/tmp/nwani_1595505827/dev) wani@lenovo /t/nwani_1595505827 ❯❯❯ cat a.c
#define PY_SSIZE_T_CLEAN
#include <Python.h>

int
main(int argc, char *argv[])
{
    wchar_t *program = Py_DecodeLocale(argv[0], NULL);
    if (program == NULL) {
        fprintf(stderr, "Fatal error: cannot decode argv[0]\n");
        exit(1);
    }
    Py_SetProgramName(program);  /* optional but recommended */
    Py_Initialize();
    PyRun_SimpleString("from time import time,ctime\n"
                       "print('Today is', ctime(time()))\n");
    if (Py_FinalizeEx() < 0) {
        exit(120);
    }
    PyMem_RawFree(program);
    return 0;
}
(/tmp/nwani_1595505827/dev) wani@lenovo /t/nwani_1595505827 ❯❯❯ gcc a.c -I$CONDA_PREFIX/include/python3.8 -L$CONDA_PREFIX/lib -lpython3.8 -Wl,-rpath,$CONDA_PREFIX/lib
(/tmp/nwani_1595505827/dev) wani@lenovo /t/nwani_1595505827 ❯❯❯ ./a.out
Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
Python path configuration:
  PYTHONHOME = (not set)
  PYTHONPATH = (not set)
  program name = './a.out'
  isolated = 0
  environment = 1
  user site = 1
  import site = 1
  sys._base_executable = '/tmp/nwani_1595505827/a.out'
  sys.base_prefix = '/tmp/build/80754af9/python_1593706424329/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placeho'
  sys.base_exec_prefix = '/tmp/build/80754af9/python_1593706424329/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placeho'
  sys.executable = '/tmp/nwani_1595505827/a.out'
  sys.prefix = '/tmp/build/80754af9/python_1593706424329/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placeho'
  sys.exec_prefix = '/tmp/build/80754af9/python_1593706424329/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placeho'
  sys.path = [
    '/tmp/build/80754af9/python_1593706424329/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placeho/lib/python38.zip',
    '/tmp/build/80754af9/python_1593706424329/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placeho/lib/python3.8',
    '/tmp/build/80754af9/python_1593706424329/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placeho/lib/lib-dynload',
  ]
Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding
Python runtime state: core initialized
ModuleNotFoundError: No module named 'encodings'

Current thread 0x00007f325e2c0740 (most recent call first):
<no Python frame>

Fix is simple: Do not turn off prefix patching.

cc @mingwandroid @jjhelmus

[katietz]

Hmm, I will take a look if this issue is still active. I will need to learn first hand why prefix patching was turned off first hand.