Merge pull request #18138 from Ultimaker/fix_python_installs

Fix Python Installs about dialog

conanfile.py

@@ -1,4 +1,5 @@
 import os
+from io import StringIO
 from pathlib import Path
 
 from jinja2 import Template
@@ -150,6 +151,7 @@ def _pyinstaller_spec_arch(self):
         return "None"
 
     def _conan_installs(self):
+        self.output.info("Collecting conan installs")
         conan_installs = {}
 
         # list of conan installs
@@ -161,13 +163,22 @@ def _conan_installs(self):
         return conan_installs
 
     def _python_installs(self):
+        self.output.info("Collecting python installs")
         python_installs = {}
 
         # list of python installs
-        python_ins_cmd = f"python -c \"import pkg_resources; print(';'.join([(s.key+','+ s.version) for s in pkg_resources.working_set]))\""
-        from six import StringIO
+        run_env = VirtualRunEnv(self)
+        env = run_env.environment()
+        env.prepend_path("PYTHONPATH", str(self._site_packages.as_posix()))
+        venv_vars = env.vars(self, scope = "run")
+
+        outer = '"' if self.settings.os == "Windows" else "'"
+        inner = "'" if self.settings.os == "Windows" else '"'
         buffer = StringIO()
-        self.run(python_ins_cmd, run_environment= True, env = "conanrun",  output=buffer)
+        with venv_vars.apply():
+            self.run(f"""python -c {outer}import pkg_resources;  print({inner};{inner}.join([(s.key+{inner},{inner}+ s.version) for s in pkg_resources.working_set])){outer}""",
+                          env = "conanrun",
+                          output = buffer)
 
         packages = str(buffer.getvalue()).split("-----------------\n")
         packages = packages[1].strip('\r\n').split(";")
@@ -504,10 +515,14 @@ def package_info(self):
 
         if self.in_local_cache:
             self.runenv_info.append_path("PYTHONPATH", os.path.join(self.package_folder, "site-packages"))
+            self.env_info.PYTHONPATH.append(os.path.join(self.package_folder, "site-packages"))
             self.runenv_info.append_path("PYTHONPATH", os.path.join(self.package_folder, "plugins"))
+            self.env_info.PYTHONPATH.append(os.path.join(self.package_folder, "plugins"))
         else:
             self.runenv_info.append_path("PYTHONPATH", self.source_folder)
+            self.env_info.PYTHONPATH.append(self.source_folder)
             self.runenv_info.append_path("PYTHONPATH", os.path.join(self.source_folder, "plugins"))
+            self.env_info.PYTHONPATH.append(os.path.join(self.source_folder, "plugins"))
 
     def package_id(self):
         self.info.clear()