Refactor bootstrap generation

This makes the bootstrap script get the package version directly from
pypi instead of from our lists of packages. This makes sure that the
packages are actually available for the end user to install.

Fixes open-telemetry#2053

scripts/otel_packaging.py

@@ -13,10 +13,11 @@
 # limitations under the License.
 
 import os
-import subprocess
 from subprocess import CalledProcessError
 
 import tomli
+from requests import get
+
 
 scripts_path = os.path.dirname(os.path.abspath(__file__))
 root_path = os.path.dirname(scripts_path)
@@ -29,17 +30,21 @@ def get_instrumentation_packages():
         if not os.path.isdir(pkg_path):
             continue
 
+        error = f"Could not get version for package {pkg}"
         try:
-            version = subprocess.check_output(
-                "hatch version",
-                shell=True,
-                cwd=pkg_path,
-                universal_newlines=True,
+            response = get(
+                f"https://pypi.org/pypi/{pkg}/json"
             )
-        except CalledProcessError as exc:
-            print(f"Could not get hatch version from path {pkg_path}")
-            print(exc.output)
-            raise exc
+
+        except Exception as exc:
+            print(error)
+            continue
+
+        if response.status_code != 200:
+            print(error)
+            continue
+
+        version = response.json()["info"]["version"]
 
         pyproject_toml_path = os.path.join(pkg_path, "pyproject.toml")