Fix typos found by Debian's Lintian program

mypy/fscache.py

@@ -201,7 +201,7 @@ def isfile_case(self, path: str, prefix: str) -> bool:
         else:
             try:
                 names = self.listdir(head)
-                # This allows to check file name case sensitively in
+                # This allows one to check file name case sensitively in
                 # case-insensitive filesystems.
                 res = tail in names and self.isfile(path)
             except OSError:

mypy/metastore.py

@@ -47,7 +47,7 @@ def write(self, name: str, data: str, mtime: Optional[float] = None) -> bool:
         If mtime is specified, set it as the mtime of the entry. Otherwise,
         the current time is used.
 
-        Returns True if the entry is succesfully written, False otherwise.
+        Returns True if the entry is successfully written, False otherwise.
         """
 
     @abstractmethod

mypy/options.py

@@ -264,7 +264,7 @@ def __init__(self) -> None:
         # Print full path to each file in the report.
         self.show_absolute_path = False  # type: bool
 
-    # To avoid breaking plugin compatability, keep providing new_semantic_analyzer
+    # To avoid breaking plugin compatibility, keep providing new_semantic_analyzer
     @property
     def new_semantic_analyzer(self) -> bool:
         return True

mypy/plugin.py

@@ -153,7 +153,7 @@ class TypeAnalyzerPluginInterface:
 
     @abstractmethod
     def fail(self, msg: str, ctx: Context, *, code: Optional[ErrorCode] = None) -> None:
-        """Emmit an error message at given location."""
+        """Emit an error message at given location."""
         raise NotImplementedError
 
     @abstractmethod
@@ -256,7 +256,7 @@ def parse_bool(self, expr: Expression) -> Optional[bool]:
     @abstractmethod
     def fail(self, msg: str, ctx: Context, serious: bool = False, *,
              blocker: bool = False, code: Optional[ErrorCode] = None) -> None:
-        """Emmit an error message at given location."""
+        """Emit an error message at given location."""
         raise NotImplementedError
 
     @abstractmethod
@@ -629,7 +629,7 @@ def get_dynamic_class_hook(self, fullname: str
                                ) -> Optional[Callable[[DynamicClassDefContext], None]]:
         """Semantically analyze a dynamic class definition.
 
-        This plugin hook allows to semantically analyze dynamic class definitions like:
+        This plugin hook allows one to semantically analyze dynamic class definitions like:
 
             from lib import dynamic_class
 

mypyc/build.py

@@ -495,7 +495,7 @@ def mypycify(
     return extensions
 
 
-# For backwards compatability we define this as an alias.  Previous
+# For backwards compatibility we define this as an alias.  Previous
 # versions used to require using it, and it is conceivable that future
 # versions will need it also.
 MypycifyBuildExt = build_ext

mypyc/emit.py

@@ -341,7 +341,7 @@ def emit_cast(self, src: str, dest: str, typ: RType, declare_dest: bool = False,
 
         Somewhat strangely, this supports unboxed types but only
         operates on boxed versions.  This is necessary to properly
-        handle types such as Optional[int] in compatability glue.
+        handle types such as Optional[int] in compatibility glue.
 
         Assign NULL (error value) to dest if the value has an incompatible type.
 

mypyc/emitmodule.py

@@ -597,7 +597,7 @@ def generate_module_def(self, emitter: Emitter, module_name: str, module: Module
         # Store the module reference in a static and return it when necessary.
         # This is separate from the *global* reference to the module that will
         # be populated when it is imported by a compiled module. We want that
-        # reference to only be populated when the module has been succesfully
+        # reference to only be populated when the module has been successfully
         # imported, whereas this we want to have to stop a circular import.
         module_static = self.module_internal_static_name(module_name, emitter)
 

mypyc/genops.py

@@ -1625,7 +1625,7 @@ def gen_glue_method(self, sig: FuncSignature, target: FuncIR,
         class A:
             def f(self, x: int) -> object: ...
 
-        then it is totally permissable to have a subclass
+        then it is totally permissible to have a subclass
 
         class B(A):
             def f(self, x: object) -> int: ...

mypyc/namegen.py

@@ -39,7 +39,7 @@ def __init__(self, groups: Iterable[List[str]]) -> None:
         """Initialize with a list of modules in each compilation group.
 
         The names of modules are used to shorten names referring to
-        modules, for convenience. Arbitary module
+        modules, for convenience. Arbitrary module
         names are supported for generated names, but uncompiled modules
         will use long names.
         """