Merge pull request #340 from dephell/fix-pyproject-detection

Add detection for pyproject format

dephell/converters/poetry.py

@@ -30,9 +30,8 @@ def can_parse(self, path: Path, content: Optional[str] = None) -> bool:
         if isinstance(path, str):
             path = Path(path)
         if content:
-            return ('[tool.poetry]' in content)
-        else:
-            return (path.name == 'pyproject.toml')
+            return '[tool.poetry]' in content
+        return path.name == 'pyproject.toml'
 
     def loads(self, content) -> RootDependency:
         doc = tomlkit.parse(content)

dephell/converters/pyproject.py

@@ -1,5 +1,6 @@
 # built-in
 from pathlib import Path
+from typing import Optional
 
 # external
 from dephell_discover import Root as PackageRoot
@@ -15,13 +16,20 @@
 class PyProjectConverter(BaseConverter):
     lock = False
 
+    def can_parse(self, path: Path, content: Optional[str] = None) -> bool:
+        if isinstance(path, str):
+            path = Path(path)
+        if content:
+            return '[build-system]' in content
+        return path.name == 'pyproject.toml'
+
     def loads(self, content: str) -> RootDependency:
         doc = parse(content)
         deps = []
         root = RootDependency(
             package=PackageRoot(path=self.project_path or Path()),
         )
-        for req in doc['build-system']['requires']:
+        for req in doc['build-system'].get('requires', []):
             req = Requirement(req)
             deps.extend(DependencyMaker.from_requirement(source=root, req=req))
         root.attach_dependencies(deps)