From 4234dfb6f9fe8107216ab7587fca6192316e0fbd Mon Sep 17 00:00:00 2001
From: Ivan Kravets <me@ikravets.com>
Date: Sun, 6 Sep 2020 18:37:27 +0300
Subject: [PATCH] Fixed an issue with "ImportError: cannot import name
 '_get_backend' from 'cryptography.hazmat.backends'" when using Remote
 Development // Resolve #3652

---
 HISTORY.rst                        |  1 +
 platformio/package/manager/core.py | 32 ++++++++++++++++++++----------
 2 files changed, 23 insertions(+), 10 deletions(-)

diff --git a/HISTORY.rst b/HISTORY.rst
index 833c823f75..a0ac578b32 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -12,6 +12,7 @@ PlatformIO Core 5
 ~~~~~~~~~~~~~~~~~~
 
 - Fixed an issue when using a custom git/ssh package with `platform_packages <https://docs.platformio.org/page/projectconf/section_env_platform.html#platform-packages>`__ option (`issue #3624 <https://github.com/platformio/platformio-core/issues/3624>`_)
+- Fixed an issue with "ImportError: cannot import name '_get_backend' from 'cryptography.hazmat.backends'" when using `Remote Development <https://docs.platformio.org/page/plus/pio-remote.html>`__ on RaspberryPi device (`issue #3652 <https://github.com/platformio/platformio-core/issues/3652>`_)
 
 5.0.0 (2020-09-03)
 ~~~~~~~~~~~~~~~~~~
diff --git a/platformio/package/manager/core.py b/platformio/package/manager/core.py
index a11217e94a..50c52430d7 100644
--- a/platformio/package/manager/core.py
+++ b/platformio/package/manager/core.py
@@ -20,7 +20,7 @@
 from platformio import __core_packages__, exception, fs, util
 from platformio.compat import PY2
 from platformio.package.manager.tool import ToolPackageManager
-from platformio.package.meta import PackageSpec
+from platformio.package.meta import PackageItem, PackageSpec
 from platformio.proc import get_pythonexe_path
 
 
@@ -95,16 +95,8 @@ def build_contrib_pysite_deps(target_dir):
     if os.path.isdir(target_dir):
         fs.rmtree(target_dir)
     os.makedirs(target_dir)
-    with open(os.path.join(target_dir, "package.json"), "w") as fp:
-        json.dump(
-            dict(
-                name="contrib-pysite",
-                version="2.%d%d.0" % (sys.version_info.major, sys.version_info.minor),
-                system=util.get_systype(),
-            ),
-            fp,
-        )
 
+    # build dependencies
     pythonexe = get_pythonexe_path()
     for dep in get_contrib_pysite_deps():
         subprocess.check_call(
@@ -115,11 +107,31 @@ def build_contrib_pysite_deps(target_dir):
                 "install",
                 # "--no-cache-dir",
                 "--no-compile",
+                "--no-binary",
+                ":all:",
                 "-t",
                 target_dir,
                 dep,
             ]
         )
+
+    # build manifests
+    with open(os.path.join(target_dir, "package.json"), "w") as fp:
+        json.dump(
+            dict(
+                name="contrib-pysite",
+                version="2.%d%d.0" % (sys.version_info.major, sys.version_info.minor),
+                system=util.get_systype(),
+            ),
+            fp,
+        )
+    pm = ToolPackageManager()
+    pkg = PackageItem(target_dir)
+    pkg.metadata = pm.build_metadata(
+        target_dir, PackageSpec(owner="platformio", name="contrib-pysite")
+    )
+    pkg.dump_meta()
+
     return True