diff --git a/Pipfile b/Pipfile
new file mode 100644
index 0000000..61a78f3
--- /dev/null
+++ b/Pipfile
@@ -0,0 +1,17 @@
+[[source]]
+name = "pypi"
+url = "https://pypi.org/simple"
+verify_ssl = true
+
+[dev-packages]
+
+[packages]
+black = "*"
+ipython = "*"
+boto3 = "*"
+
+[requires]
+python_version = "3.7"
+
+[pipenv]
+allow_prereleases = true
diff --git a/Pipfile.lock b/Pipfile.lock
new file mode 100644
index 0000000..2f7cf9b
--- /dev/null
+++ b/Pipfile.lock
@@ -0,0 +1,219 @@
+{
+    "_meta": {
+        "hash": {
+            "sha256": "336cce4fa0ee8f327fa58d4035d890583901158b9bcfe8133d86f43d3660e16c"
+        },
+        "pipfile-spec": 6,
+        "requires": {
+            "python_version": "3.7"
+        },
+        "sources": [
+            {
+                "name": "pypi",
+                "url": "https://pypi.org/simple",
+                "verify_ssl": true
+            }
+        ]
+    },
+    "default": {
+        "appdirs": {
+            "hashes": [
+                "sha256:9e5896d1372858f8dd3344faf4e5014d21849c756c8d5701f78f8a103b372d92",
+                "sha256:d8b24664561d0d34ddfaec54636d502d7cea6e29c3eaf68f3df6180863e2166e"
+            ],
+            "version": "==1.4.3"
+        },
+        "appnope": {
+            "hashes": [
+                "sha256:5b26757dc6f79a3b7dc9fab95359328d5747fcb2409d331ea66d0272b90ab2a0",
+                "sha256:8b995ffe925347a2138d7ac0fe77155e4311a0ea6d6da4f5128fe4b3cbe5ed71"
+            ],
+            "markers": "sys_platform == 'darwin'",
+            "version": "==0.1.0"
+        },
+        "attrs": {
+            "hashes": [
+                "sha256:ec20e7a4825331c1b5ebf261d111e16fa9612c1f7a5e1f884f12bd53a664dfd2",
+                "sha256:f913492e1663d3c36f502e5e9ba6cd13cf19d7fab50aa13239e420fef95e1396"
+            ],
+            "version": "==19.2.0"
+        },
+        "backcall": {
+            "hashes": [
+                "sha256:38ecd85be2c1e78f77fd91700c76e14667dc21e2713b63876c0eb901196e01e4",
+                "sha256:bbbf4b1e5cd2bdb08f915895b51081c041bac22394fdfcfdfbe9f14b77c08bf2"
+            ],
+            "version": "==0.1.0"
+        },
+        "black": {
+            "hashes": [
+                "sha256:09a9dcb7c46ed496a9850b76e4e825d6049ecd38b611f1224857a79bd985a8cf",
+                "sha256:68950ffd4d9169716bcb8719a56c07a2f4485354fec061cdd5910aa07369731c"
+            ],
+            "index": "pypi",
+            "version": "==19.3b0"
+        },
+        "boto3": {
+            "hashes": [
+                "sha256:13d90ebe4d41e1717d7cc015e983370aadba2995a2af30695f29b69f196e82fc",
+                "sha256:e50edae8ccb630dc1950332764c6b462a9550663a3d71c00f898280f1446f107"
+            ],
+            "index": "pypi",
+            "version": "==1.9.247"
+        },
+        "botocore": {
+            "hashes": [
+                "sha256:76ff516cfbe5c9f2ac4eb8bb5d8945bc7354d4898f2609ad32080efc9ecea751",
+                "sha256:fa425f3e24bb17a357a297532b253a7353a496f2be7b7a5c3fc1dd7419de259d"
+            ],
+            "version": "==1.12.247"
+        },
+        "click": {
+            "hashes": [
+                "sha256:2335065e6395b9e67ca716de5f7526736bfa6ceead690adf616d925bdc622b13",
+                "sha256:5b94b49521f6456670fdb30cd82a4eca9412788a93fa6dd6df72c94d5a8ff2d7"
+            ],
+            "version": "==7.0"
+        },
+        "decorator": {
+            "hashes": [
+                "sha256:86156361c50488b84a3f148056ea716ca587df2f0de1d34750d35c21312725de",
+                "sha256:f069f3a01830ca754ba5258fde2278454a0b5b79e0d7f5c13b3b97e57d4acff6"
+            ],
+            "version": "==4.4.0"
+        },
+        "docutils": {
+            "hashes": [
+                "sha256:6c4f696463b79f1fb8ba0c594b63840ebd41f059e92b31957c46b74a4599b6d0",
+                "sha256:9e4d7ecfc600058e07ba661411a2b7de2fd0fafa17d1a7f7361cd47b1175c827",
+                "sha256:a2aeea129088da402665e92e0b25b04b073c04b2dce4ab65caaa38b7ce2e1a99"
+            ],
+            "version": "==0.15.2"
+        },
+        "ipython": {
+            "hashes": [
+                "sha256:c4ab005921641e40a68e405e286e7a1fcc464497e14d81b6914b4fd95e5dee9b",
+                "sha256:dd76831f065f17bddd7eaa5c781f5ea32de5ef217592cf019e34043b56895aa1"
+            ],
+            "index": "pypi",
+            "version": "==7.8.0"
+        },
+        "ipython-genutils": {
+            "hashes": [
+                "sha256:72dd37233799e619666c9f639a9da83c34013a73e8bbc79a7a6348d93c61fab8",
+                "sha256:eb2e116e75ecef9d4d228fdc66af54269afa26ab4463042e33785b887c628ba8"
+            ],
+            "version": "==0.2.0"
+        },
+        "jedi": {
+            "hashes": [
+                "sha256:786b6c3d80e2f06fd77162a07fed81b8baa22dde5d62896a790a331d6ac21a27",
+                "sha256:ba859c74fa3c966a22f2aeebe1b74ee27e2a462f56d3f5f7ca4a59af61bfe42e"
+            ],
+            "version": "==0.15.1"
+        },
+        "jmespath": {
+            "hashes": [
+                "sha256:3720a4b1bd659dd2eecad0666459b9788813e032b83e7ba58578e48254e0a0e6",
+                "sha256:bde2aef6f44302dfb30320115b17d030798de8c4110e28d5cf6cf91a7a31074c"
+            ],
+            "version": "==0.9.4"
+        },
+        "parso": {
+            "hashes": [
+                "sha256:63854233e1fadb5da97f2744b6b24346d2750b85965e7e399bec1620232797dc",
+                "sha256:666b0ee4a7a1220f65d367617f2cd3ffddff3e205f3f16a0284df30e774c2a9c"
+            ],
+            "version": "==0.5.1"
+        },
+        "pexpect": {
+            "hashes": [
+                "sha256:2094eefdfcf37a1fdbfb9aa090862c1a4878e5c7e0e7e7088bdb511c558e5cd1",
+                "sha256:9e2c1fd0e6ee3a49b28f95d4b33bc389c89b20af6a1255906e90ff1262ce62eb"
+            ],
+            "markers": "sys_platform != 'win32'",
+            "version": "==4.7.0"
+        },
+        "pickleshare": {
+            "hashes": [
+                "sha256:87683d47965c1da65cdacaf31c8441d12b8044cdec9aca500cd78fc2c683afca",
+                "sha256:9649af414d74d4df115d5d718f82acb59c9d418196b7b4290ed47a12ce62df56"
+            ],
+            "version": "==0.7.5"
+        },
+        "prompt-toolkit": {
+            "hashes": [
+                "sha256:46642344ce457641f28fc9d1c9ca939b63dadf8df128b86f1b9860e59c73a5e4",
+                "sha256:e7f8af9e3d70f514373bf41aa51bc33af12a6db3f71461ea47fea985defb2c31",
+                "sha256:f15af68f66e664eaa559d4ac8a928111eebd5feda0c11738b5998045224829db"
+            ],
+            "version": "==2.0.10"
+        },
+        "ptyprocess": {
+            "hashes": [
+                "sha256:923f299cc5ad920c68f2bc0bc98b75b9f838b93b599941a6b63ddbc2476394c0",
+                "sha256:d7cc528d76e76342423ca640335bd3633420dc1366f258cb31d05e865ef5ca1f"
+            ],
+            "version": "==0.6.0"
+        },
+        "pygments": {
+            "hashes": [
+                "sha256:71e430bc85c88a430f000ac1d9b331d2407f681d6f6aec95e8bcfbc3df5b0127",
+                "sha256:881c4c157e45f30af185c1ffe8d549d48ac9127433f2c380c24b84572ad66297"
+            ],
+            "version": "==2.4.2"
+        },
+        "python-dateutil": {
+            "hashes": [
+                "sha256:7e6584c74aeed623791615e26efd690f29817a27c73085b78e4bad02493df2fb",
+                "sha256:c89805f6f4d64db21ed966fda138f8a5ed7a4fdbc1a8ee329ce1b74e3c74da9e"
+            ],
+            "markers": "python_version >= '2.7'",
+            "version": "==2.8.0"
+        },
+        "s3transfer": {
+            "hashes": [
+                "sha256:6efc926738a3cd576c2a79725fed9afde92378aa5c6a957e3af010cb019fac9d",
+                "sha256:b780f2411b824cb541dbcd2c713d0cb61c7d1bcadae204cdddda2b35cef493ba"
+            ],
+            "version": "==0.2.1"
+        },
+        "six": {
+            "hashes": [
+                "sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c",
+                "sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
+            ],
+            "version": "==1.12.0"
+        },
+        "toml": {
+            "hashes": [
+                "sha256:229f81c57791a41d65e399fc06bf0848bab550a9dfd5ed66df18ce5f05e73d5c",
+                "sha256:235682dd292d5899d361a811df37e04a8828a5b1da3115886b73cf81ebc9100e"
+            ],
+            "version": "==0.10.0"
+        },
+        "traitlets": {
+            "hashes": [
+                "sha256:70b4c6a1d9019d7b4f6846832288f86998aa3b9207c6821f3578a6a6a467fe44",
+                "sha256:d023ee369ddd2763310e4c3eae1ff649689440d4ae59d7485eb4cfbbe3e359f7"
+            ],
+            "version": "==4.3.3"
+        },
+        "urllib3": {
+            "hashes": [
+                "sha256:3de946ffbed6e6746608990594d08faac602528ac7015ac28d33cee6a45b7398",
+                "sha256:9a107b99a5393caf59c7aa3c1249c16e6879447533d0887f4336dde834c7be86"
+            ],
+            "markers": "python_version >= '3.4'",
+            "version": "==1.25.6"
+        },
+        "wcwidth": {
+            "hashes": [
+                "sha256:3df37372226d6e63e1b1e1eda15c594bca98a22d33a23832a90998faa96bc65e",
+                "sha256:f4ebe71925af7b40a864553f761ed559b43544f8f71746c2d756c7fe788ade7c"
+            ],
+            "version": "==0.1.7"
+        }
+    },
+    "develop": {}
+}
diff --git a/pizzas.zip b/pizzas.zip
new file mode 100644
index 0000000..c453e47
Binary files /dev/null and b/pizzas.zip differ
diff --git a/roman-candle.csv b/roman-candle.csv
new file mode 100644
index 0000000..9c894c9
--- /dev/null
+++ b/roman-candle.csv
@@ -0,0 +1,4 @@
+name,quantity
+Roman Candle,2
+Veggie Candle,1
+Marco Pollo Parm,1
diff --git a/warmup.py b/warmup.py
new file mode 100644
index 0000000..b243405
--- /dev/null
+++ b/warmup.py
@@ -0,0 +1,43 @@
+import io
+import os
+import zipfile
+from pathlib import Path
+import boto3
+
+
+def unzip_object_in_s3(bucket, zip_key_name, file_key_name):
+    """Download, unzip, and upload a file from a zip archive in an S3 bucket.
+
+    Performs the unzipping in memory.
+
+    Args:
+        bucket: A boto3 Resource object for an S3 bucket
+        zip_key_name: The key to the zip file in the bucket
+        file_key_name: The name of the file in the zip archive to extract
+    Returns:
+        dst_key_name: The key to the extracted file in the bucket
+    """
+    dst_key_name = Path(zip_key_name).parent / Path(zip_key_name).stem / file_key_name
+    with io.BytesIO() as compressed:
+        s3_bucket.download_fileobj(Key=zip_key_name, Fileobj=compressed)
+        with zipfile.ZipFile(compressed) as zip_handle:
+            with zip_handle.open(file_key_name) as decompressed:
+                s3_bucket.upload_fileobj(
+                    Fileobj=decompressed, Key=str(dst_key_name)
+                )
+
+    return str(dst_key_name)
+
+
+assert os.environ["AWS_PROFILE"]
+# aws s3 cp pizzas.zip s3://madpy/warmup/2019-10-10/pizzas.zip
+s3_bucket = boto3.resource("s3").Bucket("madpy")
+zip_key_name = "warmup/2019-10-10/pizzas.zip"
+file_key_name = "roman-candle.csv"
+dst_key_name = unzip_object_in_s3(s3_bucket, zip_key_name, file_key_name)
+
+
+with io.BytesIO() as test:
+    s3_bucket.download_fileobj(Key=dst_key_name, Fileobj=test)
+    test.seek(0)
+    print(test.read().decode("utf-8"))
\ No newline at end of file