Switch to four-spaces indentation in setup.py

(imported from commit 621e5755e8cfd7117e012f4245de0916e45060bb)

setup.py

@@ -9,18 +9,18 @@ import sys
 import itertools
 
 def version():
-  version_py = os.path.join(os.path.dirname(__file__), "zulip", "__init__.py")
-  with open(version_py) as in_handle:
-    version_line = itertools.dropwhile(lambda x: not x.startswith("__version__"),
-                                       in_handle).next()
-  version = version_line.split('=')[-1].strip().replace('"', '')
-  return version
+    version_py = os.path.join(os.path.dirname(__file__), "zulip", "__init__.py")
+    with open(version_py) as in_handle:
+        version_line = itertools.dropwhile(lambda x: not x.startswith("__version__"),
+                                           in_handle).next()
+    version = version_line.split('=')[-1].strip().replace('"', '')
+    return version
 
 def recur_expand(target_root, dir):
-  for root, _, files in os.walk(dir):
-    paths = [os.path.join(root, f) for f in files]
-    if len(paths):
-      yield os.path.join(target_root, root), paths
+    for root, _, files in os.walk(dir):
+        paths = [os.path.join(root, f) for f in files]
+        if len(paths):
+            yield os.path.join(target_root, root), paths
 
 # We should be installable with either setuptools or distutils.
 package_info = dict(
@@ -53,23 +53,23 @@ setuptools_info = dict(
 )
 
 try:
-  from setuptools import setup
-  package_info.update(setuptools_info)
+    from setuptools import setup
+    package_info.update(setuptools_info)
 except ImportError:
-  from distutils.core import setup
-  from distutils.version import LooseVersion
-  # Manual dependency check
-  try:
-    import simplejson
-  except ImportError:
-    print >>sys.stderr, "simplejson is not installed"
-    sys.exit(1)
-  try:
-    import requests
-    assert(LooseVersion(requests.__version__) >= LooseVersion('0.12.1'))
-  except (ImportError, AssertionError):
-    print >>sys.stderr, "requests >=0.12.1 is not installed"
-    sys.exit(1)
+    from distutils.core import setup
+    from distutils.version import LooseVersion
+    # Manual dependency check
+    try:
+        import simplejson
+    except ImportError:
+        print >>sys.stderr, "simplejson is not installed"
+        sys.exit(1)
+    try:
+        import requests
+        assert(LooseVersion(requests.__version__) >= LooseVersion('0.12.1'))
+    except (ImportError, AssertionError):
+        print >>sys.stderr, "requests >=0.12.1 is not installed"
+        sys.exit(1)
 
 
 setup(**package_info)