Fix cross platform download and installation for windows

Python/README.md

@@ -6,7 +6,7 @@ sqlmlutils is a python package to help execute Python code on a SQL Server machi
 
 From a command prompt, run
 ```
-python.exe -m pip install --upgrade --upgrade-strategy only-if-needed dist/sqlmlutils-0.6.0.zip
+python.exe -m pip install --upgrade --upgrade-strategy only-if-needed dist/sqlmlutils-0.6.1.zip
 ```
 OR
 To build a new package file and install (windows), run

Python/buildandinstall.cmd

@@ -1,2 +1,2 @@
 python.exe setup.py sdist --formats=zip
-python.exe -m pip install --upgrade --upgrade-strategy only-if-needed dist\sqlmlutils-0.6.0.zip
+python.exe -m pip install --upgrade --upgrade-strategy only-if-needed dist\sqlmlutils-0.6.1.zip

Python/setup.py

@@ -6,7 +6,7 @@ from distutils.core import setup
 setup(
     name='sqlmlutils',
     packages=['sqlmlutils', 'sqlmlutils/packagemanagement'],
-    version='0.6.0',
+    version='0.6.1',
     url='https://github.com/Microsoft/sqlmlutils',
     license='MIT License',
     description='A client side package for working with SQL Machine Learning Python Services. '

Python/sqlmlutils/packagemanagement/download_script.py

@@ -17,6 +17,8 @@ else:
     from pip import main as pipmain
 
 # Monkey patch the pip version information with server information
+pep425tags.is_manylinux2010_compatible = lambda: True
+pep425tags.is_manylinux1_compatible = lambda: True
 pep425tags.get_impl_version_info = lambda: eval(sys.argv[1])
 pep425tags.get_abbr_impl = lambda: sys.argv[2]
 pep425tags.get_abi_tag = lambda: sys.argv[3]

Python/sqlmlutils/packagemanagement/pipdownloader.py

@@ -30,12 +30,15 @@ class PipDownloader:
             commands.append("--no-dependencies")
 
         output, error = self._run_in_new_process(commands)
-
+        
         pkgreqs = self._get_reqs_from_output(output)
 
         packagesdownloaded = [os.path.join(self._downloaddir, f) for f in os.listdir(self._downloaddir)
                               if os.path.isfile(os.path.join(self._downloaddir, f))]
 
+        if len(packagesdownloaded) <= 0:
+            raise RuntimeError("Failed to download any packages, pip returned error: " + error)
+            
         return pkgreqs, packagesdownloaded
 
     def _run_in_new_process(self, commands):

Python/sqlmlutils/packagemanagement/sqlpackagemanager.py

@@ -30,7 +30,7 @@ class SQLPackageManager:
                 upgrade: bool = False,
                 version: str = None,
                 install_dependencies: bool = True,
-                scope: Scope = Scope.private_scope()):
+                scope: Scope = None):
         """Install Python package into a SQL Server Python Services environment using pip.
 
         :param package: Package name to install on the SQL Server. Can also be a filename.
@@ -63,13 +63,16 @@ class SQLPackageManager:
         if not install_dependencies:
             raise ValueError("Dependencies will always be installed - "
                              "single package install without dependencies not yet supported.")
-
+        
+        if scope is None:
+            scope = self._get_default_scope()
+        
         if os.path.isfile(package):
             self._install_from_file(package, scope, upgrade)
         else:
             self._install_from_pypi(package, upgrade, version, install_dependencies, scope)
 
-    def uninstall(self, package_name: str, scope: Scope = Scope.private_scope()):
+    def uninstall(self, package_name: str, scope: Scope = None):
         """Remove Python package from a SQL Server Python environment.
 
         :param package_name: Package name to remove on the SQL Server.
@@ -78,6 +81,10 @@ class SQLPackageManager:
         db_owner role, you can also specify scope as public. This will uninstall packages from a public path for all
         users. Note: if you connect as dbo, you can only uninstall packages from the public path.
         """
+        
+        if scope is None:
+            scope = self._get_default_scope()
+            
         print("Uninstalling " + package_name + " only, not dependencies")
         self._drop_sql_package(package_name, scope)
 
@@ -88,7 +95,12 @@ class SQLPackageManager:
         """
         return self._pyexecutor.execute_function_in_sql(servermethods.show_installed_packages)
 
-    def get_packages_by_user(self, owner='', scope: Scope =Scope.private_scope()):
+    def _get_default_scope(self):
+        query = "SELECT IS_SRVROLEMEMBER ('sysadmin') as is_sysadmin"
+        is_sysadmin = self._pyexecutor.execute_sql_query(query)["is_sysadmin"].iloc[0]
+        return Scope.public_scope() if is_sysadmin == 1 else Scope.private_scope()
+        
+    def _get_packages_by_user(self, owner='', scope: Scope=Scope.private_scope()):
         has_user = (owner != '')
 
         query = "DECLARE @principalId INT;  \