SL-15742: Convert build scripts to Python 3

This changeset makes it possible to build the Second Life viewer using
Python 3. It is designed to be used with an equivalent Autobuild branch
so that a developer can compile without needing Python 2 on their
machine.

Breaking change: Python 2 support ending

Rather than supporting two versions of Python, including one that was
discontinued at the beginning of the year, this branch focuses on
pouring future effort into Python 3 only. As a result, scripts do not
need to be backwards compatible. This means that build environments,
be they on personal computers and on build agents, need to have a
compatible interpreter.

Notes

- SLVersionChecker will still use Python 2 on macOS
- Fixed the message template url used by template_verifier.py

1 files changed, 5 insertions, 5 deletions

diff --git a/indra/test/test_llmanifest.py b/indra/test/test_llmanifest.py
index a97abbc6ee..c746d59ff2 100755
--- a/indra/test/test_llmanifest.py
+++ b/indra/test/test_llmanifest.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """
 @file test_llmanifest.py
 @author Ryan Williams
@@ -124,10 +124,10 @@ class TestLLManifest(unittest.TestCase):
 
     def testcmakedirs(self):
         self.m.cmakedirs("test_dir_DELETE/nested/dir")
-        self.assert_(os.path.exists("test_dir_DELETE/nested/dir"))
-        self.assert_(os.path.isdir("test_dir_DELETE"))
-        self.assert_(os.path.isdir("test_dir_DELETE/nested"))
-        self.assert_(os.path.isdir("test_dir_DELETE/nested/dir"))
+        self.assertTrue(os.path.exists("test_dir_DELETE/nested/dir"))
+        self.assertTrue(os.path.isdir("test_dir_DELETE"))
+        self.assertTrue(os.path.isdir("test_dir_DELETE/nested"))
+        self.assertTrue(os.path.isdir("test_dir_DELETE/nested/dir"))
         os.removedirs("test_dir_DELETE/nested/dir")
 
 if __name__ == '__main__':