diff --git a/docs/modules/functools.md b/docs/modules/functools.md
new file mode 100644
index 00000000..b0d89da7
--- /dev/null
+++ b/docs/modules/functools.md
@@ -0,0 +1,16 @@
+---
+icon: package
+label: functools
+---
+
+### `functools.cache`
+
+A decorator that caches a function's return value each time it is called. If called later with the same arguments, the cached value is returned, and not re-evaluated.
+
+### `functools.reduce(function, sequence, initial=...)`
+
+Apply a function of two arguments cumulatively to the items of a sequence, from left to right, so as to reduce the sequence to a single value. For example, `functools.reduce(lambda x, y: x+y, [1, 2, 3, 4, 5])` calculates `((((1+2)+3)+4)+5)`. The left argument, `x`, is the accumulated value and the right argument, `y`, is the update value from the sequence. If the optional `initial` is present, it is placed before the items of the sequence in the calculation, and serves as a default when the sequence is empty.
+
+### `functools.partial(f, *args, **kwargs)`
+
+Return a new partial object which when called will behave like `f` called with the positional arguments `args` and keyword arguments `kwargs`. If more arguments are supplied to the call, they are appended to `args`. If additional keyword arguments are supplied, they extend and override `kwargs`.
diff --git a/include/pocketpy/_generated.h b/include/pocketpy/_generated.h
index 6847b1e2..31cf490d 100644
--- a/include/pocketpy/_generated.h
+++ b/include/pocketpy/_generated.h
@@ -11,7 +11,7 @@ namespace pkpy{
     inline const char kPythonLibs_collections[] = {100,101,102,32,67,111,117,110,116,101,114,40,105,116,101,114,97,98,108,101,41,58,10,32,32,32,32,97,32,61,32,123,125,10,32,32,32,32,102,111,114,32,120,32,105,110,32,105,116,101,114,97,98,108,101,58,10,32,32,32,32,32,32,32,32,105,102,32,120,32,105,110,32,97,58,10,32,32,32,32,32,32,32,32,32,32,32,32,97,91,120,93,32,43,61,32,49,10,32,32,32,32,32,32,32,32,101,108,115,101,58,10,32,32,32,32,32,32,32,32,32,32,32,32,97,91,120,93,32,61,32,49,10,32,32,32,32,114,101,116,117,114,110,32,97,10,10,99,108,97,115,115,32,100,101,102,97,117,108,116,100,105,99,116,40,100,105,99,116,41,58,10,32,32,32,32,100,101,102,32,95,95,105,110,105,116,95,95,40,115,101,108,102,44,32,100,101,102,97,117,108,116,95,102,97,99,116,111,114,121,44,32,42,97,114,103,115,41,58,10,32,32,32,32,32,32,32,32,115,117,112,101,114,40,41,46,95,95,105,110,105,116,95,95,40,42,97,114,103,115,41,10,32,32,32,32,32,32,32,32,115,101,108,102,46,95,101,110,97,98,108,101,95,105,110,115,116,97,110,99,101,95,100,105,99,116,40,41,10,32,32,32,32,32,32,32,32,115,101,108,102,46,100,101,102,97,117,108,116,95,102,97,99,116,111,114,121,32,61,32,100,101,102,97,117,108,116,95,102,97,99,116,111,114,121,10,10,32,32,32,32,100,101,102,32,95,95,109,105,115,115,105,110,103,95,95,40,115,101,108,102,44,32,107,101,121,41,58,10,32,32,32,32,32,32,32,32,115,101,108,102,91,107,101,121,93,32,61,32,115,101,108,102,46,100,101,102,97,117,108,116,95,102,97,99,116,111,114,121,40,41,10,32,32,32,32,32,32,32,32,114,101,116,117,114,110,32,115,101,108,102,91,107,101,121,93,10,10,32,32,32,32,100,101,102,32,95,95,114,101,112,114,95,95,40,115,101,108,102,41,32,45,62,32,115,116,114,58,10,32,32,32,32,32,32,32,32,114,101,116,117,114,110,32,102,34,100,101,102,97,117,108,116,100,105,99,116,40,123,115,101,108,102,46,100,101,102,97,117,108,116,95,102,97,99,116,111,114,121,125,44,32,123,115,117,112,101,114,40,41,46,95,95,114,101,112,114,95,95,40,41,125,41,34,10,10,32,32,32,32,100,101,102,32,99,111,112,121,40,115,101,108,102,41,58,10,32,32,32,32,32,32,32,32,114,101,116,117,114,110,32,100,101,102,97,117,108,116,100,105,99,116,40,115,101,108,102,46,100,101,102,97,117,108,116,95,102,97,99,116,111,114,121,44,32,115,101,108,102,41,10,10,0};
     inline const char kPythonLibs_colorsys[] = 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     inline const char kPythonLibs_datetime[] = 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-    inline const char kPythonLibs_functools[] = {35,32,100,101,102,32,99,97,99,104,101,40,102,41,58,10,35,32,32,32,32,32,100,101,102,32,119,114,97,112,112,101,114,40,42,97,114,103,115,41,58,10,35,32,32,32,32,32,32,32,32,32,105,102,32,110,111,116,32,104,97,115,97,116,116,114,40,102,44,32,39,95,95,99,97,99,104,101,95,95,39,41,58,10,35,32,32,32,32,32,32,32,32,32,32,32,32,32,102,46,95,95,99,97,99,104,101,95,95,32,61,32,123,125,10,35,32,32,32,32,32,32,32,32,32,107,101,121,32,61,32,97,114,103,115,10,35,32,32,32,32,32,32,32,32,32,105,102,32,107,101,121,32,110,111,116,32,105,110,32,102,46,95,95,99,97,99,104,101,95,95,58,10,35,32,32,32,32,32,32,32,32,32,32,32,32,32,102,46,95,95,99,97,99,104,101,95,95,91,107,101,121,93,32,61,32,102,40,42,97,114,103,115,41,10,35,32,32,32,32,32,32,32,32,32,114,101,116,117,114,110,32,102,46,95,95,99,97,99,104,101,95,95,91,107,101,121,93,10,35,32,32,32,32,32,114,101,116,117,114,110,32,119,114,97,112,112,101,114,10,10,99,108,97,115,115,32,99,97,99,104,101,58,10,32,32,32,32,100,101,102,32,95,95,105,110,105,116,95,95,40,115,101,108,102,44,32,102,41,58,10,32,32,32,32,32,32,32,32,115,101,108,102,46,102,32,61,32,102,10,32,32,32,32,32,32,32,32,115,101,108,102,46,99,97,99,104,101,32,61,32,123,125,10,10,32,32,32,32,100,101,102,32,95,95,99,97,108,108,95,95,40,115,101,108,102,44,32,42,97,114,103,115,41,58,10,32,32,32,32,32,32,32,32,105,102,32,97,114,103,115,32,110,111,116,32,105,110,32,115,101,108,102,46,99,97,99,104,101,58,10,32,32,32,32,32,32,32,32,32,32,32,32,115,101,108,102,46,99,97,99,104,101,91,97,114,103,115,93,32,61,32,115,101,108,102,46,102,40,42,97,114,103,115,41,10,32,32,32,32,32,32,32,32,114,101,116,117,114,110,32,115,101,108,102,46,99,97,99,104,101,91,97,114,103,115,93,0};
+    inline const char kPythonLibs_functools[] = {99,108,97,115,115,32,99,97,99,104,101,58,10,32,32,32,32,100,101,102,32,95,95,105,110,105,116,95,95,40,115,101,108,102,44,32,102,41,58,10,32,32,32,32,32,32,32,32,115,101,108,102,46,102,32,61,32,102,10,32,32,32,32,32,32,32,32,115,101,108,102,46,99,97,99,104,101,32,61,32,123,125,10,10,32,32,32,32,100,101,102,32,95,95,99,97,108,108,95,95,40,115,101,108,102,44,32,42,97,114,103,115,41,58,10,32,32,32,32,32,32,32,32,105,102,32,97,114,103,115,32,110,111,116,32,105,110,32,115,101,108,102,46,99,97,99,104,101,58,10,32,32,32,32,32,32,32,32,32,32,32,32,115,101,108,102,46,99,97,99,104,101,91,97,114,103,115,93,32,61,32,115,101,108,102,46,102,40,42,97,114,103,115,41,10,32,32,32,32,32,32,32,32,114,101,116,117,114,110,32,115,101,108,102,46,99,97,99,104,101,91,97,114,103,115,93,10,32,32,32,32,10,100,101,102,32,114,101,100,117,99,101,40,102,117,110,99,116,105,111,110,44,32,115,101,113,117,101,110,99,101,44,32,105,110,105,116,105,97,108,61,46,46,46,41,58,10,32,32,32,32,105,116,32,61,32,105,116,101,114,40,115,101,113,117,101,110,99,101,41,10,32,32,32,32,105,102,32,105,110,105,116,105,97,108,32,105,115,32,46,46,46,58,10,32,32,32,32,32,32,32,32,118,97,108,117,101,32,61,32,110,101,120,116,40,105,116,41,10,32,32,32,32,32,32,32,32,105,102,32,118,97,108,117,101,32,105,115,32,83,116,111,112,73,116,101,114,97,116,105,111,110,58,10,32,32,32,32,32,32,32,32,32,32,32,32,114,97,105,115,101,32,84,121,112,101,69,114,114,111,114,40,34,114,101,100,117,99,101,40,41,32,111,102,32,101,109,112,116,121,32,105,116,101,114,97,98,108,101,32,119,105,116,104,32,110,111,32,105,110,105,116,105,97,108,32,118,97,108,117,101,34,41,10,32,32,32,32,101,108,115,101,58,10,32,32,32,32,32,32,32,32,118,97,108,117,101,32,61,32,105,110,105,116,105,97,108,10,32,32,32,32,102,111,114,32,101,108,101,109,101,110,116,32,105,110,32,105,116,58,10,32,32,32,32,32,32,32,32,118,97,108,117,101,32,61,32,102,117,110,99,116,105,111,110,40,118,97,108,117,101,44,32,101,108,101,109,101,110,116,41,10,32,32,32,32,114,101,116,117,114,110,32,118,97,108,117,101,10,10,99,108,97,115,115,32,112,97,114,116,105,97,108,58,10,32,32,32,32,100,101,102,32,95,95,105,110,105,116,95,95,40,115,101,108,102,44,32,102,44,32,42,97,114,103,115,44,32,42,42,107,119,97,114,103,115,41,58,10,32,32,32,32,32,32,32,32,115,101,108,102,46,102,32,61,32,102,10,32,32,32,32,32,32,32,32,105,102,32,110,111,116,32,99,97,108,108,97,98,108,101,40,102,41,58,10,32,32,32,32,32,32,32,32,32,32,32,32,114,97,105,115,101,32,84,121,112,101,69,114,114,111,114,40,34,116,104,101,32,102,105,114,115,116,32,97,114,103,117,109,101,110,116,32,109,117,115,116,32,98,101,32,99,97,108,108,97,98,108,101,34,41,10,32,32,32,32,32,32,32,32,115,101,108,102,46,97,114,103,115,32,61,32,97,114,103,115,10,32,32,32,32,32,32,32,32,115,101,108,102,46,107,119,97,114,103,115,32,61,32,107,119,97,114,103,115,10,10,32,32,32,32,100,101,102,32,95,95,99,97,108,108,95,95,40,115,101,108,102,44,32,42,97,114,103,115,44,32,42,42,107,119,97,114,103,115,41,58,10,32,32,32,32,32,32,32,32,107,119,97,114,103,115,46,117,112,100,97,116,101,40,115,101,108,102,46,107,119,97,114,103,115,41,10,32,32,32,32,32,32,32,32,114,101,116,117,114,110,32,115,101,108,102,46,102,40,42,115,101,108,102,46,97,114,103,115,44,32,42,97,114,103,115,44,32,42,42,107,119,97,114,103,115,41,10,10,0};
     inline const char kPythonLibs_heapq[] = 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     inline const char kPythonLibs_itertools[] = {100,101,102,32,122,105,112,95,108,111,110,103,101,115,116,40,97,44,32,98,41,58,10,32,32,32,32,97,32,61,32,105,116,101,114,40,97,41,10,32,32,32,32,98,32,61,32,105,116,101,114,40,98,41,10,32,32,32,32,119,104,105,108,101,32,84,114,117,101,58,10,32,32,32,32,32,32,32,32,97,105,32,61,32,110,101,120,116,40,97,41,10,32,32,32,32,32,32,32,32,98,105,32,61,32,110,101,120,116,40,98,41,10,32,32,32,32,32,32,32,32,105,102,32,97,105,32,105,115,32,83,116,111,112,73,116,101,114,97,116,105,111,110,32,97,110,100,32,98,105,32,105,115,32,83,116,111,112,73,116,101,114,97,116,105,111,110,58,10,32,32,32,32,32,32,32,32,32,32,32,32,98,114,101,97,107,10,32,32,32,32,32,32,32,32,105,102,32,97,105,32,105,115,32,83,116,111,112,73,116,101,114,97,116,105,111,110,58,10,32,32,32,32,32,32,32,32,32,32,32,32,97,105,32,61,32,78,111,110,101,10,32,32,32,32,32,32,32,32,105,102,32,98,105,32,105,115,32,83,116,111,112,73,116,101,114,97,116,105,111,110,58,10,32,32,32,32,32,32,32,32,32,32,32,32,98,105,32,61,32,78,111,110,101,10,32,32,32,32,32,32,32,32,121,105,101,108,100,32,97,105,44,32,98,105,10,0};
     inline const char kPythonLibs_pickle[] = 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115,104,111,117,108,100,32,98,101,32,78,111,110,101,10,32,32,32,32,32,32,32,32,32,32,32,32,105,110,100,101,120,32,61,32,111,91,48,93,10,32,32,32,32,32,32,32,32,32,32,32,32,105,102,32,115,101,108,102,46,95,117,110,119,114,97,112,112,101,100,91,105,110,100,101,120,93,32,105,115,32,78,111,110,101,58,10,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,111,32,61,32,115,101,108,102,46,109,101,109,111,91,105,110,100,101,120,93,10,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,97,115,115,101,114,116,32,116,121,112,101,40,111,41,32,105,115,32,108,105,115,116,10,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,97,115,115,101,114,116,32,116,121,112,101,40,111,91,48,93,41,32,105,115,32,115,116,114,10,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,115,101,108,102,46,117,110,119,114,97,112,40,111,44,32,105,110,100,101,120,41,10,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,97,115,115,101,114,116,32,115,101,108,102,46,95,117,110,119,114,97,112,112,101,100,91,105,110,100,101,120,93,32,105,115,32,110,111,116,32,78,111,110,101,10,32,32,32,32,32,32,32,32,32,32,32,32,114,101,116,117,114,110,32,115,101,108,102,46,95,117,110,119,114,97,112,112,101,100,91,105,110,100,101,120,93,10,32,32,32,32,32,32,32,32,10,32,32,32,32,32,32,32,32,35,32,99,111,110,99,114,101,116,101,32,114,101,102,101,114,101,110,99,101,32,116,121,112,101,10,32,32,32,32,32,32,32,32,105,102,32,111,91,48,93,32,61,61,32,34,116,117,112,108,101,34,58,10,32,32,32,32,32,32,32,32,32,32,32,32,114,101,116,32,61,32,116,117,112,108,101,40,91,115,101,108,102,46,117,110,119,114,97,112,40,105,41,32,102,111,114,32,105,32,105,110,32,111,91,49,93,93,41,10,32,32,32,32,32,32,32,32,32,32,32,32,115,101,108,102,46,116,97,103,40,105,110,100,101,120,44,32,114,101,116,41,10,32,32,32,32,32,32,32,32,32,32,32,32,114,101,116,117,114,110,32,114,101,116,10,32,32,32,32,32,32,32,32,105,102,32,111,91,48,93,32,61,61,32,34,98,121,116,101,115,34,58,10,32,32,32,32,32,32,32,32,32,32,32,32,114,101,116,32,61,32,98,121,116,101,115,40,111,91,49,93,41,10,32,32,32,32,32,32,32,32,32,32,32,32,115,101,108,102,46,116,97,103,40,105,110,100,101,120,44,32,114,101,116,41,10,32,32,32,32,32,32,32,32,32,32,32,32,114,101,116,117,114,110,32,114,101,116,10,32,32,32,32,32,32,32,32,105,102,32,111,91,48,93,32,61,61,32,34,108,105,115,116,34,58,10,32,32,32,32,32,32,32,32,32,32,32,32,114,101,116,32,61,32,91,93,10,32,32,32,32,32,32,32,32,32,32,32,32,115,101,108,102,46,116,97,103,40,105,110,100,101,120,44,32,114,101,116,41,10,32,32,32,32,32,32,32,32,32,32,32,32,102,111,114,32,105,32,105,110,32,111,91,49,93,58,10,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,114,101,116,46,97,112,112,101,110,100,40,115,101,108,102,46,117,110,119,114,97,112,40,105,41,41,10,32,32,32,32,32,32,32,32,32,32,32,32,114,101,116,117,114,110,32,114,101,116,10,32,32,32,32,32,32,32,32,105,102,32,111,91,48,93,32,61,61,32,34,100,105,99,116,34,58,10,32,32,32,32,32,32,32,32,32,32,32,32,114,101,116,32,61,32,123,125,10,32,32,32,32,32,32,32,32,32,32,32,32,115,101,108,102,46,116,97,103,40,105,110,100,101,120,44,32,114,101,116,41,10,32,32,32,32,32,32,32,32,32,32,32,32,102,111,114,32,107,44,118,32,105,110,32,111,91,49,93,58,10,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,114,101,116,91,115,101,108,102,46,117,110,119,114,97,112,40,107,41,93,32,61,32,115,101,108,102,46,117,110,119,114,97,112,40,118,41,10,32,32,32,32,32,32,32,32,32,32,32,32,114,101,116,117,114,110,32,114,101,116,10,32,32,32,32,32,32,32,32,10,32,32,32,32,32,32,32,32,35,32,103,101,110,101,114,105,99,32,111,98,106,101,99,116,10,32,32,32,32,32,32,32,32,99,108,115,32,61,32,95,102,105,110,100,95,99,108,97,115,115,40,111,91,48,93,41,10,32,32,32,32,32,32,32,32,105,102,32,103,101,116,97,116,116,114,40,99,108,115,44,32,39,95,95,115,116,114,117,99,116,95,95,39,44,32,70,97,108,115,101,41,58,10,32,32,32,32,32,32,32,32,32,32,32,32,105,110,115,116,32,61,32,99,108,115,46,102,114,111,109,95,115,116,114,117,99,116,40,115,116,114,117,99,116,46,102,114,111,109,104,101,120,40,111,91,49,93,41,41,10,32,32,32,32,32,32,32,32,32,32,32,32,115,101,108,102,46,116,97,103,40,105,110,100,101,120,44,32,105,110,115,116,41,10,32,32,32,32,32,32,32,32,32,32,32,32,114,101,116,117,114,110,32,105,110,115,116,10,32,32,32,32,32,32,32,32,101,108,115,101,58,10,32,32,32,32,32,32,32,32,32,32,32,32,95,44,32,110,101,119,97,114,103,115,44,32,115,116,97,116,101,32,61,32,111,10,32,32,32,32,32,32,32,32,32,32,32,32,35,32,99,114,101,97,116,101,32,117,110,105,110,105,116,105,97,108,105,122,101,100,32,105,110,115,116,97,110,99,101,10,32,32,32,32,32,32,32,32,32,32,32,32,110,101,119,95,102,32,61,32,103,101,116,97,116,116,114,40,99,108,115,44,32,34,95,95,110,101,119,95,95,34,41,10,32,32,32,32,32,32,32,32,32,32,32,32,105,102,32,110,101,119,97,114,103,115,32,105,115,32,110,111,116,32,78,111,110,101,58,10,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,110,101,119,97,114,103,115,32,61,32,91,115,101,108,102,46,117,110,119,114,97,112,40,105,41,32,102,111,114,32,105,32,105,110,32,110,101,119,97,114,103,115,93,10,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,105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diff --git a/python/functools.py b/python/functools.py
index 4aa96831..d595e0c8 100644
--- a/python/functools.py
+++ b/python/functools.py
@@ -1,13 +1,3 @@
-# def cache(f):
-#     def wrapper(*args):
-#         if not hasattr(f, '__cache__'):
-#             f.__cache__ = {}
-#         key = args
-#         if key not in f.__cache__:
-#             f.__cache__[key] = f(*args)
-#         return f.__cache__[key]
-#     return wrapper
-
 class cache:
     def __init__(self, f):
         self.f = f
@@ -16,4 +6,29 @@ class cache:
     def __call__(self, *args):
         if args not in self.cache:
             self.cache[args] = self.f(*args)
-        return self.cache[args]
\ No newline at end of file
+        return self.cache[args]
+    
+def reduce(function, sequence, initial=...):
+    it = iter(sequence)
+    if initial is ...:
+        value = next(it)
+        if value is StopIteration:
+            raise TypeError("reduce() of empty iterable with no initial value")
+    else:
+        value = initial
+    for element in it:
+        value = function(value, element)
+    return value
+
+class partial:
+    def __init__(self, f, *args, **kwargs):
+        self.f = f
+        if not callable(f):
+            raise TypeError("the first argument must be callable")
+        self.args = args
+        self.kwargs = kwargs
+
+    def __call__(self, *args, **kwargs):
+        kwargs.update(self.kwargs)
+        return self.f(*self.args, *args, **kwargs)
+
diff --git a/tests/88_functools.py b/tests/88_functools.py
new file mode 100644
index 00000000..caad2c4a
--- /dev/null
+++ b/tests/88_functools.py
@@ -0,0 +1,25 @@
+# test reduce
+
+from functools import reduce, partial
+
+# test reduce
+assert reduce(lambda x, y: x + y, [1, 2, 3, 4, 5]) == 15
+assert reduce(lambda x, y: x * y, [1, 2, 3, 4, 5]) == 120
+assert reduce(lambda x, y: x * y, [1, 2, 3, 4, 5], 10) == 1200
+
+# test partial
+def add(a, b):
+    return a + b
+
+add_1 = partial(add, 1)
+
+assert add_1(2) == 3
+assert add_1(3) == 4
+
+def sub(a, b=1):
+    return a - b
+
+sub_10 = partial(sub, b=10)
+assert sub_10(20) == 10
+assert sub_10(30) == 20
+