Replaced configparser with toml package for parsing Cargo.toml as configparser was unable to handle array of tables, e.g. multiple [[bench]]s or [[example]]s

Author: bcmyers

.gitignore

@@ -11,3 +11,4 @@ Cargo.lock
 /example/target/
 /example/*.egg-info
 .idea/
+.mypy_cache/

setup.py

@@ -15,7 +15,7 @@
         (open('README.rst').read(), open('CHANGES.rst').read())),
     license='MIT',
     packages=['setuptools_rust'],
-    install_requires=['semantic_version>=2.6.0'],
+    install_requires=['semantic_version>=2.6.0', 'toml>=0.9.0'],
     zip_safe=True,
     classifiers=[
         "Topic :: Software Development :: Version Control",

setuptools_rust/extension.py

@@ -5,13 +5,8 @@
 from distutils.errors import DistutilsSetupError
 from .utils import Binding, Strip
 
-try:
-    import configparser
-except ImportError:
-    import ConfigParser as configparser
-
-
 import semantic_version
+import toml
 
 
 class RustExtension:
@@ -99,11 +94,17 @@ def __init__(self, target, path,
         self.path = path
 
     def get_lib_name(self):
-        cfg = configparser.ConfigParser()
-        cfg.read(self.path)
-        section = 'lib' if cfg.has_option('lib', 'name') else 'package'
-        name = cfg.get(section, 'name').strip('\'\"').strip()
-        return re.sub(r"[./\\-]", "_", name)
+        cfg = toml.load(self.path)
+        name = cfg.get('lib', {}).get('name')
+        if name is None:
+            name = cfg.get('package', {}).get('name')
+        if name is None:
+            raise Exception(
+                "Can not parse library name from Cargo.toml. "
+                "Cargo.toml missing value for 'name' key "
+                "in both the [package] section and the [lib] section")
+        name = re.sub(r"[./\\-]", "_", name)
+        return name
 
     def get_rust_version(self):
         if self.rust_version is None: