Update runtime files
diff --git a/runtime/doc/if_pyth.txt b/runtime/doc/if_pyth.txt
index 79b1716..19b8b67 100644
--- a/runtime/doc/if_pyth.txt
+++ b/runtime/doc/if_pyth.txt
@@ -1,4 +1,4 @@
-*if_pyth.txt* For Vim version 8.2. Last change: 2021 Nov 12
+*if_pyth.txt* For Vim version 8.2. Last change: 2022 Feb 07
VIM REFERENCE MANUAL by Paul Moore
@@ -65,7 +65,7 @@
*python-environment*
Environment variables set in Vim are not always available in Python. This
-depends on how Vim and Python were build. Also see
+depends on how Vim and Python were built. Also see
https://docs.python.org/3/library/os.html#os.environ
Note: Python is very sensitive to the indenting. Make sure the "class" line
@@ -834,6 +834,19 @@
Raising SystemExit exception in python isn't endorsed way to quit vim, use: >
:py vim.command("qall!")
<
+ *E1266*
+This error can occur when python 3 cannot load the required modules. This
+means that your python 3 is not correctly installed or there are some mistakes
+in your settings. Please check the following items:
+1. Make sure that python 3 is correctly installed. Also check the version of
+ python.
+2. Check the 'pythonthreedll' option.
+3. Check the 'pythonthreehome' option.
+4. Check the PATH environment variable if you don't set 'pythonthreedll'.
+ On MS-Windows, you can use where.exe to check which dll will be loaded.
+ E.g. >
+ where.exe python310.dll
+5. Check the PYTHONPATH and PYTHONHOME environment variables.
*has-python*
You can test what Python version is available with: >