Suggest the name config.ini instead

Use install.py as the section name.

Author: oleks

README.rst

@@ -72,18 +72,18 @@ User Guide
 ==========
 
 Copy |install_py|_ into the directory containing the files that you would like
-to install. Create an INI file, (e.g., called ``install.ini``) having a
-``default`` section with the properties ``src_dir``, ``dst_dir``, and
+to install. Create an INI file, (e.g., called ``config.ini``) having a
+``install.py`` section with the properties ``src_dir``, ``dst_dir``, and
 ``files``. The values of the properties may be arbitrary Python expressions,
 evaluating to the types ``str``, ``str``, and ``List[str]``, respectively. This
 is to allow you to specify the configuration in a platform-independent way.
 
 For instance, you might have a ``hooks`` directory in your Git repository,
-having an |install_py|_, and an ``install.ini`` that looks like this:
+having an |install_py|_, and an ``config.ini`` that looks like this:
 
 .. code:: python
 
-  [default]
+  [install.py]
   src_dir = os.path.dirname(__file__)
   dst_dir = os.path.join(src_dir, '..', '.git', 'hooks')
   files = ['pre-commit', 'pre-push']

install.py

@@ -87,16 +87,18 @@ def _main(fnames: List[str], src_dir: str, dst_dir: str) -> None:
 def _init() -> Tuple[List[str], str, str]:
     config = configparser.ConfigParser()
     if len(sys.argv) < 2:
-        config_path = os.path.join(os.path.dirname(__file__), 'install.ini')
+        config_path = os.path.join(os.path.dirname(__file__), 'config.ini')
     else:
         config_path = sys.argv[1]
     config.read(config_path)
-    src_dir = os.path.relpath(eval(config['default']['src_dir']))
-    dst_dir = os.path.relpath(eval(config['default']['dst_dir']))
-    fnames = eval(config['default']['files'])
+    src_dir = eval(config['install.py']['src_dir'])
+    dst_dir = eval(config['install.py']['dst_dir'])
+    fnames = eval(config['install.py']['files'])
     assert type(src_dir) is str
     assert type(dst_dir) is str
     assert type(fnames) is List[str]
+    src_dir = os.path.relpath(src_dir)
+    dst_dir = os.path.relpath(dst_dir)
     return (fnames, src_dir, dst_dir)