From e4f32ffdeca7959933787d9db71e0f40c988d5dd Mon Sep 17 00:00:00 2001
From: Akemi Izuko <akemi@noway.moe>
Date: Thu, 8 Dec 2022 20:54:20 -0700
Subject: [PATCH] Add python manpage script

---
 bash/.bash_functions |  4 +++
 bin/man_py.sh        | 69 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+)
 create mode 100755 bin/man_py.sh

diff --git a/bash/.bash_functions b/bash/.bash_functions
index 4537627..c171aae 100644
--- a/bash/.bash_functions
+++ b/bash/.bash_functions
@@ -57,6 +57,10 @@ viw() {
   fi
 }
 
+manpy() {
+  ~/.configs_pointer/bin/man_py.sh $@
+}
+
 # Ronald's Universal Number Kounter, standardized syntax for unix calculators
 # BSD-style arguments. v for verbose. c/p/b for the corresponding calculator
 # Syntax features:
diff --git a/bin/man_py.sh b/bin/man_py.sh
new file mode 100755
index 0000000..00a444e
--- /dev/null
+++ b/bin/man_py.sh
@@ -0,0 +1,69 @@
+#!/usr/bin/env bash
+# `man` for python functions
+#
+# A few libraries are imported by default:
+#   <name>/[alias]
+#   numpy/np
+#   pandas/pd
+print_help() {
+  cat <<HELP
+Open the help page for a python function
+
+Usage: $(basename $0) [options] <function>
+
+Options:
+    --lib <lib>   Specify a library to import
+
+Numpy as np and Pandas as pd work by default. Prefixing with a library works
+
+Examples:
+    $(basename $0) exit
+    $(basename $0) --lib os os.getcwd
+    $(basename $0) os.getcwd             # Implicity imports \`os\`
+    $(basename $0) numpy.random.randint  # Implicity imports \`numpy.random\`
+    $(basename $0) np.random.randint     # np -> numpy, then same as above
+HELP
+}
+
+declare lookup lib
+declare -r py="/usr/bin/env python3"
+
+# Parse args
+while [[ "$#" -gt 0 ]]; do
+  case "$1" in
+    -h | --help)
+      print_help
+      exit 0
+      ;;
+    --lib)
+      shift
+
+      if [[ -z "$1" ]]; then
+        print_help
+        exit 1
+      else
+        lib="$1"
+      fi
+      ;;
+    *)
+      lookup="$1"
+      ;;
+  esac
+
+  shift
+done
+
+# Expand aliases
+lookup="$(echo "$lookup" | sed 's#^np\.#numpy.#')"
+lookup="$(echo "$lookup" | sed 's#^pd\.#pandas.#')"
+
+# Open manpage
+if [[ -z "$lookup" ]]; then
+  print_help
+elif [[ -n "$lib" ]]; then
+  $py -c "import $lib; help($lookup)"
+elif [[ "$lookup" =~ \. ]]; then
+  $py -c "import ${lookup%.*}; help($lookup)"
+else
+  $py -c "help($lookup)"
+fi