STY: x.__class__ to type(x) #batch-1

pandas/_libs/internals.pyx

@@ -54,7 +54,7 @@ cdef class BlockPlacement:
         else:
             v = self._as_array
 
-        return f'{self.__class__.__name__}({v})'
+        return f'{type(self).__name__}({v})'
 
     def __repr__(self) -> str:
         return str(self)

pandas/_libs/tslibs/c_timestamp.pyx

@@ -87,7 +87,7 @@ cdef class _Timestamp(datetime):
                 return PyObject_RichCompareBool(val, other, op)
 
             try:
-                ots = self.__class__(other)
+                ots = type(self)(other)
             except ValueError:
                 return self._compare_outside_nanorange(other, op)
         else:
@@ -96,7 +96,7 @@ cdef class _Timestamp(datetime):
             if ndim != -1:
                 if ndim == 0:
                     if is_datetime64_object(other):
-                        other = self.__class__(other)
+                        other = type(self)(other)
                     elif is_array(other):
                         # zero-dim array, occurs if try comparison with
                         #  datetime64 scalar on the left hand side
@@ -105,7 +105,7 @@ cdef class _Timestamp(datetime):
                         #  the numpy C api to extract it.
                         other = cnp.PyArray_ToScalar(cnp.PyArray_DATA(other),
                                                      other)
-                        other = self.__class__(other)
+                        other = type(self)(other)
                     else:
                         return NotImplemented
                 elif is_array(other):
@@ -226,8 +226,7 @@ cdef class _Timestamp(datetime):
 
         if is_timedelta64_object(other):
             other_int = other.astype('timedelta64[ns]').view('i8')
-            return self.__class__(self.value + other_int,
-                                  tz=self.tzinfo, freq=self.freq)
+            return type(self)(self.value + other_int, tz=self.tzinfo, freq=self.freq)
 
         elif is_integer_object(other):
             maybe_integer_op_deprecated(self)
@@ -238,8 +237,7 @@ cdef class _Timestamp(datetime):
             elif self.freq is None:
                 raise NullFrequencyError(
                     "Cannot add integral value to Timestamp without freq.")
-            return self.__class__((self.freq * other).apply(self),
-                                  freq=self.freq)
+            return type(self)((self.freq * other).apply(self), freq=self.freq)
 
         elif PyDelta_Check(other) or hasattr(other, 'delta'):
             # delta --> offsets.Tick
@@ -253,8 +251,7 @@ cdef class _Timestamp(datetime):
                          other.seconds * 1000000 +
                          other.microseconds) * 1000
 
-            result = self.__class__(self.value + nanos,
-                                    tz=self.tzinfo, freq=self.freq)
+            result = type(self)(self.value + nanos, tz=self.tzinfo, freq=self.freq)
             return result
 
         elif is_array(other):
@@ -272,7 +269,7 @@ cdef class _Timestamp(datetime):
 
         result = datetime.__add__(self, other)
         if PyDateTime_Check(result):
-            result = self.__class__(result)
+            result = type(self)(result)
             result.nanosecond = self.nanosecond
         return result
 
@@ -304,9 +301,9 @@ cdef class _Timestamp(datetime):
         if (PyDateTime_Check(self)
                 and (PyDateTime_Check(other) or is_datetime64_object(other))):
             if isinstance(self, _Timestamp):
-                other = self.__class__(other)
+                other = type(self)(other)
             else:
-                self = other.__class__(self)
+                self = type(other)(self)
 
             # validate tz's
             if not tz_compare(self.tzinfo, other.tzinfo):

pandas/_libs/tslibs/offsets.pyx

@@ -363,7 +363,7 @@ class _BaseOffset:
         attrs = [(k, v) for k, v in all_paras.items()
                  if (k not in exclude) and (k[0] != '_')]
         attrs = sorted(set(attrs))
-        params = tuple([str(self.__class__)] + attrs)
+        params = tuple([str(type(self))] + attrs)
         return params
 
     @property

pandas/core/arrays/base.py

@@ -923,7 +923,7 @@ def __repr__(self) -> str:
         data = format_object_summary(
             self, self._formatter(), indent_for_name=False
         ).rstrip(", \n")
-        class_name = "<{}>\n".format(self.__class__.__name__)
+        class_name = "<{}>\n".format(type(self).__name__)
         return template.format(
             class_name=class_name, data=data, length=len(self), dtype=self.dtype
         )

pandas/core/arrays/interval.py

@@ -870,7 +870,7 @@ def __repr__(self) -> str:
         # repr does. So we include a newline in our template, and strip
         # any trailing newlines from format_object_summary
         data = self._format_data()
-        class_name = "<{}>\n".format(self.__class__.__name__)
+        class_name = "<{}>\n".format(type(self).__name__)
         return template.format(
             class_name=class_name,
             data=data,
@@ -880,7 +880,7 @@ def __repr__(self) -> str:
         )
 
     def _format_space(self):
-        space = " " * (len(self.__class__.__name__) + 1)
+        space = " " * (len(type(self).__name__) + 1)
         return "\n{space}".format(space=space)
 
     @property

pandas/core/base.py

@@ -51,7 +51,7 @@ class PandasObject(DirNamesMixin):
     @property
     def _constructor(self):
         """class constructor (for this class it's just `__class__`"""
-        return self.__class__
+        return type(self)
 
     def __repr__(self) -> str:
         """
@@ -1185,7 +1185,7 @@ def _reduce(
         if func is None:
             raise TypeError(
                 "{klass} cannot perform the operation {op}".format(
-                    klass=self.__class__.__name__, op=name
+                    klass=type(self).__name__, op=name
                 )
             )
         return func(skipna=skipna, **kwds)

pandas/core/common.py

@@ -317,7 +317,7 @@ def get_callable_name(obj):
         return get_callable_name(obj.func)
     # fall back to class name
     if hasattr(obj, "__call__"):
-        return obj.__class__.__name__
+        return type(obj).__name__
     # everything failed (probably because the argument
     # wasn't actually callable); we return None
     # instead of the empty string in this case to allow

pandas/core/computation/expr.py

@@ -435,7 +435,7 @@ def visit(self, node, **kwargs):
                     e.msg = "Python keyword not valid identifier in numexpr query"
                 raise e
 
-        method = "visit_" + node.__class__.__name__
+        method = "visit_" + type(node).__name__
         visitor = getattr(self, method)
         return visitor(node, **kwargs)
 

pandas/core/computation/ops.py

@@ -145,7 +145,7 @@ def type(self):
     def raw(self) -> str:
         return pprint_thing(
             "{0}(name={1!r}, type={2})"
-            "".format(self.__class__.__name__, self.name, self.type)
+            "".format(type(self).__name__, self.name, self.type)
         )
 
     @property

pandas/core/computation/pytables.py

@@ -440,7 +440,7 @@ def visit_Attribute(self, node, **kwargs):
         attr = node.attr
         value = node.value
 
-        ctx = node.ctx.__class__
+        ctx = type(node.ctx)
         if ctx == ast.Load:
             # resolve the value
             resolved = self.visit(value)