pypa/get-pip

ImportError: No module named 'ntpath', when python3 get-pip.py

georgewangchun opened this issue · 5 comments

georgewangchun commented

/usr/bin# python3 --version
Python 3.5.5

I downloaded get-pip.py from https://bootstrap.pypa.io/pip/3.5/

root@2GIG-EDG-77-E4:/usr/bin# python3 --version
Python 3.5.5
root@2GIG-EDG-77-E4:/usr/bin# python3 get-pip.py
Traceback (most recent call last):
File "get-pip.py", line 23974, in
main()
File "get-pip.py", line 199, in main
bootstrap(tmpdir=tmpdir)
File "get-pip.py", line 82, in bootstrap
from pip._internal.cli.main import main as pip_entry_point
File "/tmp/tmpndiz5lqo/pip.zip/pip/_internal/cli/main.py", line 10, in
File "/tmp/tmpndiz5lqo/pip.zip/pip/_internal/cli/autocompletion.py", line 9, in
File "/tmp/tmpndiz5lqo/pip.zip/pip/_internal/cli/main_parser.py", line 7, in
File "/tmp/tmpndiz5lqo/pip.zip/pip/_internal/cli/cmdoptions.py", line 25, in
File "/tmp/tmpndiz5lqo/pip.zip/pip/_internal/cli/progress_bars.py", line 12, in
File "/tmp/tmpndiz5lqo/pip.zip/pip/_internal/utils/logging.py", line 18, in
File "/tmp/tmpndiz5lqo/pip.zip/pip/_internal/utils/misc.py", line 21, in
File "/tmp/tmpndiz5lqo/pip.zip/pip/_vendor/pkg_resources/init.py", line 42, in
ImportError: No module named 'ntpath'

/usr/bin# python3 -c "import sys; print('\n'.join(sys.path))"

/usr/lib/python35.zip
/usr/lib/python3.5
/usr/lib/python3.5/plat-linux
/usr/lib/python3.5/lib-dynload
/usr/lib/python3.5/site-packages

/usr/bin# echo $PYTHONPATH

pradyunsg commented

How did you obtain and install Python?

georgewangchun commented

Th python3 is installed from our Yocto project. But it is not convenient for me to change the project configuration now. So I want to manually install pip.

georgewangchun commented

I installed pip in the yocto image. now I got a different error:

/usr/bin# python qr.py
Traceback (most recent call last):
File "qr.py", line 2, in
import pyzbar.pyzbar as pyzbar
File "/usr/lib/python2.7/site-packages/pyzbar/pyzbar.py", line 7, in
from .wrapper import (
File "/usr/lib/python2.7/site-packages/pyzbar/wrapper.py", line 143, in
c_uint_p, # minor
File "/usr/lib/python2.7/site-packages/pyzbar/wrapper.py", line 136, in zbar_function
return prototype((fname, load_libzbar()))
File "/usr/lib/python2.7/site-packages/pyzbar/wrapper.py", line 115, in load_libzbar
libzbar, dependencies = zbar_library.load()
File "/usr/lib/python2.7/site-packages/pyzbar/zbar_library.py", line 66, in load
libzbar = cdll.LoadLibrary(path)
File "/usr/lib/python2.7/ctypes/init.py", line 444, in LoadLibrary
return self._dlltype(name)
File "/usr/lib/python2.7/ctypes/init.py", line 366, in init
self._handle = _dlopen(self._name, mode)
OSError: /usr/lib/libzbar.so.0: undefined symbol: dsprintbuf

georgewangchun commented

in zbar\decoder\ean.c
#ifdef DEBUG_EAN
static unsigned char debug_buf[0x18];

static inline const unsigned char *dsprintbuf(ean_decoder_t *ean)
...

But when dsprintbuf() is called it is not wrapped in #ifdef DEBUG_EAN

xavfernandez commented

The issue doesn't seem related toget-pip.py anymore.