remove dependance on pip command line

stonebig · stonebig · commit 931d4d0d41c5 · 2024-05-01T14:16:22.000+02:00
and by so, drop support for Python-3.7 and below
diff --git a/winpython/__init__.py b/winpython/__init__.py
@@ -28,6 +28,6 @@
 OTHER DEALINGS IN THE SOFTWARE.
 """
 
-__version__ = '7.6.20240427'
+__version__ = '8.0.20240501'
 __license__ = __doc__
 __project_url__ = 'http://winpython.github.io/'
diff --git a/winpython/piptree.py b/winpython/piptree.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+# require python 3.8+ because of importlib.metadata
 import json, sys, re, platform, os, sysconfig
 import re
 from collections import OrderedDict
@@ -58,7 +59,7 @@ def __init__(self, Target=None):
             pip_json_installed=distributions(path=[str(Path(Target).parent /'lib'/'site-packages'),])  
         for p in pip_json_installed: 
             meta = p.metadata
-            name = p.name
+            name = p.metadata['Name']  # p.name is not ok in 3.8
             version = p.version
             key = normalize(name)
             requires = []
diff --git a/winpython/wppm.py b/winpython/wppm.py
@@ -316,23 +316,11 @@ def get_installed_packages(self, update=False):
 
         # Include package installed via pip (not via WPPM)
         wppm = []
-        try:  # we try to use also 'pip inspect' via piptree (work for pip>= 22.2)
-            if str(Path(sys.executable).parent) == self.target:
-                self.pip = piptree.pipdata()
-            else:
-                self.pip = piptree.pipdata(Target=utils.get_python_executable(self.target))
-            pip_list = self.pip.pip_list()
-        except:
-            # if failure back to pip list (will use packages.ini for names)
-            cmdx = [
-                utils.get_python_executable(self.target),  # PyPy !
-                "-m",
-                "pip",
-                "list",
-            ]
-            pip_list_raw = utils.exec_run_cmd(cmdx).splitlines()
-            # pip list gives 2 lines of titles to ignore
-            pip_list = [l.split() for l in pip_list_raw[2:]]
+        if str(Path(sys.executable).parent) == self.target:
+            self.pip = piptree.pipdata()
+        else:
+            self.pip = piptree.pipdata(Target=utils.get_python_executable(self.target))
+        pip_list = self.pip.pip_list()
 
         # create pip package list
         wppm = [
