fixed compat issues w/ pip 10

Author: nficano

aws_lambda/aws_lambda.py

@@ -407,7 +407,12 @@ def _filter_blacklist(package):
             package = package.replace('-e ', '')
 
         print('Installing {package}'.format(package=package))
-        pip.main(['install', package, '-t', path, '--ignore-installed'])
+        pip_major_version = [int(v) for v in pip.__version__.split('.')][0]
+        if pip_major_version >= 10:
+            from pip._internal import main
+            main(['install', package, '-t', path, '--ignore-installed'])
+        else:
+            pip.main(['install', package, '-t', path, '--ignore-installed'])
 
 
 def pip_install_to_target(path, requirements=None, local_package=None):
@@ -427,7 +432,12 @@ def pip_install_to_target(path, requirements=None, local_package=None):
     packages = []
     if not requirements:
         print('Gathering pip packages')
-        packages.extend(pip.operations.freeze.freeze())
+        pip_major_version = [int(v) for v in pip.__version__.split('.')][0]
+        if pip_major_version >= 10:
+            from pip._internal import operations
+            packages.extend(operations.freeze.freeze())
+        else:
+            packages.extend(pip.operations.freeze.freeze())
     else:
         if os.path.exists(requirements):
             print('Gathering requirement packages')