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This article walks you through an example of deploying a Python 3.6 application that uses Pandas and AWS S3 on AWS Lambda using Boto3 in Python in 2018. No shell, no bash, no web console, everything is automated in Python. The previous article of a Hello World example can be found here.

Again, the reason to use Python Boto3 to interact with AWS is that,

  1. I'm more familiar with Python than Bash, which means a Python script can be more flexible and powerful than Bash for me.
  2. I'm not a fun of the AWS web console. It might be easier to do certain things, but it is definitely not automated.


steinwaywhw / AWS Lambda: Hello
Last active Jun 10, 2021
An extremely simple AWS Lambda example in Python 3.
View AWS Lambda: Hello


In general, AWS services can be accessed using

  1. AWS web interface,
  2. API libraries in a programming language, such as boto3 for Python 3,
  3. AWS command-line interface, i.e. awscli.

I opted for the API library since it is

View set.smt2
; uninterpreted sort
(declare-sort Elt)
(define-sort Set (Elt) (Array Elt Bool))
; bijection Int <=> Elt
(declare-fun mkint (Int) Elt)
(declare-fun unmkint (Elt) Int)
(assert (forall ((x Int)) (= x (unmkint (mkint x)))))
(assert (forall ((e Elt)) (= e (mkint (unmkint e)))))
steinwaywhw / ATS.sublime-build
Created Oct 7, 2016
A draft build system for ATS on SublimeText
View ATS.sublime-build
"cmd": ["patscc", "$file"],
"shell": false,
"selector": "source.ats",
"env": {
"file_regex": "^(.+): \\d+\\(line=(\\d+), offs=(\\d+)\\) -- \\d+\\(line=\\d+, offs=\\d+\\): (.+)",
"variants": [
steinwaywhw / texsvg.hs
Created Jun 2, 2016 — forked from lierdakil/texsvg.hs
Pandoc filter to convert math to inline svg using latex and dvisvgm
View texsvg.hs
import Text.Pandoc.JSON
import System.Directory
import System.FilePath ((</>))
import qualified Data.Hash.MD5 as MD5
import System.IO.Temp
import System.Process
import Control.Monad (unless)
main :: IO ()
main = toJSONFilter mathToSvg
steinwaywhw / One Liner to Download the Latest Release from Github
Last active Jun 22, 2021
One Liner to Download the Latest Release from Github Repo
View One Liner to Download the Latest Release from Github
  • Use curl to get the JSON response for the latest release
  • Use grep to find the line containing file URL
  • Use cut and tr to extract the URL
  • Use wget to download it
curl -s \
| grep "browser_download_url.*deb" \
| cut -d : -f 2,3 \
| tr -d \" \
steinwaywhw /
Created Sep 13, 2015
A Copy of ml-ulex Source Code

I pasted it here because it is hard to find for me. It is publicly available at here. The total order and canonical form is clearly presented here over the original ml-ulex paper.

(* reg-exp-fn.sml
 * COPYRIGHT (c) 2005 
 * John Reppy (
 * Aaron Turon (
 * All rights reserved.
steinwaywhw /
Created Sep 1, 2015
Customization of SublimeText on Mac

User Key Bindings

	{ "keys": ["end"], "command": "move_to", "args": {"to": "eol"} },
	{ "keys": ["home"], "command": "move_to", "args": {"to": "bol"} },
	{ "keys": ["f3"], "command": "find_next"}
steinwaywhw / gist:f7a60d7de1ac321bed4b
Created Jun 1, 2015
Common Suffix for Pretty ATS Output
View gist:f7a60d7de1ac321bed4b
... 2>&1 | sed 's/S2\(E\|RT\)\|_type\|_t0ype\|C3NSTR\|_bool//g' | sed -e "s/\(cst\|BASpre\)(\(\\w\+\))/\2/g" | em "line=\d+" -f red | em "\[\w+\]" -f yellow | em "SHOWTYPE" -f blue | em "needed term" -l -f bold | sed -e "s/Var([0-9]\+->var(\(\\w\+\)([0-9]\+)))/\1/g" | sed -e "s/app(\(.*\); \(.*\))/\1(\2)/g"
steinwaywhw /
Created May 10, 2015
One-liner to remove un-tagged docker images
docker rmi $(docker images | grep "^<none>" | tr -s ' ' | cut -d ' ' -f 3)