A python snippet to retrieve all lambda functions to store under git

lambda2git.py

import boto3
import os
import sys
import requests
from pathlib import Path
import zipfile

fn_client = boto3.client("lambda")
dir_name = 'lambda_functions'
Path("./"+str(dir_name)).mkdir(parents=True, exist_ok=True)

for func in fn_client.list_functions()['Functions']:
    print(func['FunctionName'])
    tmp_dir = './'+str(dir_name)+'/'
    arn = func['FunctionArn']
    arn_parts = arn.split(':')
    func_name = arn_parts[6]
    func_details = fn_client.get_function(FunctionName=arn)
    zip_file = tmp_dir + func_name + '.zip'
    if 'Location' not in func_details['Code']:
        continue
    url = func_details['Code']['Location']
    r = requests.get(url)
    with open(zip_file, "wb") as code:
        code.write(r.content)
    with zipfile.ZipFile(zip_file,"r") as zip_ref:
        depl_package_dir = "./"+str(dir_name)+'/'+func_name+'/'+func['Runtime']
        Path(depl_package_dir).mkdir(parents=True, exist_ok=True)
        zip_ref.extractall(depl_package_dir)
    os.remove(zip_file)