d:\python\python.exe pip install flask



 cd d:\python

PS D:\python> pip install flask

Fatal error in launcher: Unable to create process using '"c:\program files\python37\python.exe"  "D:\python\pip.exe" install flask': ???????????


PS D:\python> d:\python\python.exe pip install flask

D:\python\python.exe: can't open file 'pip': [Errno 2] No such file or directory

PS D:\python> d:\python\python.exe -m pip install flask