trying to install the new enviro+
install script fails with error ;-
Searching for pms5003
Download error on https://pypi.python.org/simple/pms5003/: [Errno 107] Transport endpoint is not connected – Some packages may not be found!
Couldn’t find index page for ‘pms5003’ (maybe misspelled?)
No local packages or working download links found for pms5003
error: Could not find suitable distribution for Requirement.parse(‘pms5003’)
can anyone help please