Module 'tokenize' has no attribute 'open'

Hi there,
Good Day
i can’t import pandas or any thing to pycharm
i’m new to python
i receive this message in cmd
any ideas?
thanks

Traceback (most recent call last):
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\runpy.py”, line 193, in run_module_as_main
main”, mod_spec)
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\runpy.py”, line 85, in run_code
exec(code, run_globals)
File "C:\Users\akah7\AppData\Local\Programs\Python\Python37-32\Scripts\pip.exe_main
.py", line 5, in
File "c:\users\akah7\appdata\local\programs\python\python37-32\lib\site-packages\pip_internal_init
.py", line 40, in
from pip._internal.cli.autocompletion import autocomplete
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\site-packages\pip_internal\cli\autocompletion.py”, line 8, in
from pip._internal.cli.main_parser import create_main_parser
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\site-packages\pip_internal\cli\main_parser.py”, line 8, in
from pip._internal.cli import cmdoptions
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\site-packages\pip_internal\cli\cmdoptions.py”, line 22, in
from pip._internal.utils.hashes import STRONG_HASHES
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\site-packages\pip_internal\utils\hashes.py”, line 10, in
from pip._internal.utils.misc import read_chunks
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\site-packages\pip_internal\utils\misc.py”, line 21, in
from pip.vendor import pkg_resources
File "c:\users\akah7\appdata\local\programs\python\python37-32\lib\site-packages\pip_vendor\pkg_resources_init
.py", line 82, in
import(‘pip._vendor.packaging.requirements’)
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\site-packages\pip_vendor\packaging\requirements.py”, line 9, in
from pip._vendor.pyparsing import stringStart, stringEnd, originalTextFor, ParseException
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\site-packages\pip_vendor\pyparsing.py”, line 5230, in
_escapedPunc = Word( _bslash, r"-*.$+^?()~ ", exact=2 ).setParseAction(lambda s,l,t:t[0][1])
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\site-packages\pip_vendor\pyparsing.py”, line 1428, in setParseAction
self.parseAction = list(map(_trim_arity, list(fns)))
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\site-packages\pip_vendor\pyparsing.py”, line 1197, in _trim_arity
this_line = extract_stack(limit=2)[-1]
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\site-packages\pip_vendor\pyparsing.py”, line 1181, in extract_stack
frame_summary = traceback.extract_stack(limit=-offset+limit-1)[offset]
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\traceback.py”, line 211, in extract_stack
stack = StackSummary.extract(walk_stack(f), limit=limit)
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\traceback.py”, line 363, in extract
f.line
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\traceback.py”, line 285, in line
self._line = linecache.getline(self.filename, self.lineno).strip()
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\linecache.py”, line 16, in getline
lines = getlines(filename, module_globals)
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\linecache.py”, line 47, in getlines
return updatecache(filename, module_globals)
File “c:\users\akah7\appdata\local\programs\python\python37-32\lib\linecache.py”, line 136, in updatecache
with tokenize.open(fullname) as fp:
AttributeError: module ‘tokenize’ has no attribute ‘open’