misc. typos

Found via `codespell`

docs/advanced/exceptions.rst

@@ -138,5 +138,5 @@ section.
     error return without exception set``.
     error return without exception set``.
 
 
     Exceptions that you do not plan to handle should simply not be caught, or
     Exceptions that you do not plan to handle should simply not be caught, or
-    may be explicity (re-)thrown to delegate it to the other,
+    may be explicitly (re-)thrown to delegate it to the other,
     previously-declared existing exception translators.
     previously-declared existing exception translators.

docs/advanced/functions.rst

@@ -126,7 +126,7 @@ targeted arguments can be passed through the :class:`cpp_function` constructor:
 
 
 .. warning::
 .. warning::
 
 
-    Code with invalid return value policies might access unitialized memory or
+    Code with invalid return value policies might access uninitialized memory or
     free data structures multiple times, which can lead to hard-to-debug
     free data structures multiple times, which can lead to hard-to-debug
     non-determinism and segmentation faults, hence it is worth spending the
     non-determinism and segmentation faults, hence it is worth spending the
     time to understand all the different options in the table above.
     time to understand all the different options in the table above.

tests/test_exceptions.cpp

@@ -9,7 +9,7 @@
 
 
 #include "pybind11_tests.h"
 #include "pybind11_tests.h"
 
 
-// A type that should be raised as an exeption in Python
+// A type that should be raised as an exception in Python
 class MyException : public std::exception {
 class MyException : public std::exception {
 public:
 public:
     explicit MyException(const char * m) : message{m} {}
     explicit MyException(const char * m) : message{m} {}

tests/test_operator_overloading.py

@@ -98,7 +98,7 @@ def test_nested():
 
 
     del c
     del c
     pytest.gc_collect()
     pytest.gc_collect()
-    del a  # Should't delete while abase is still alive
+    del a  # Shouldn't delete while abase is still alive
     pytest.gc_collect()
     pytest.gc_collect()
 
 
     assert abase.value == 42
     assert abase.value == 42

tools/FindPythonLibsNew.cmake

 # - Find python libraries
 # - Find python libraries
-# This module finds the libraries corresponding to the Python interpeter
+# This module finds the libraries corresponding to the Python interpreter
 # FindPythonInterp provides.
 # FindPythonInterp provides.
 # This code sets the following variables:
 # This code sets the following variables:
 #
 #