Add some basics.

Pipfile

@@ -0,0 +1,14 @@
+[[source]]
+url = "https://pypi.org/simple"
+verify_ssl = true
+name = "pypi"
+
+[packages]
+requests = "*"
+lxml = "*"
+
+[dev-packages]
+pytest = "*"
+
+[requires]
+python_version = "3.6"

Pipfile.lock

@@ -0,0 +1,144 @@
+{
+    "_meta": {
+        "hash": {
+            "sha256": "08ed153b0efa1c001b3850999703a70cca802338671a9cb684a98ecd6d4b25b1"
+        },
+        "pipfile-spec": 6,
+        "requires": {
+            "python_version": "3.6"
+        },
+        "sources": [
+            {
+                "name": "pypi",
+                "url": "https://pypi.org/simple",
+                "verify_ssl": true
+            }
+        ]
+    },
+    "default": {
+        "certifi": {
+            "hashes": [
+                "sha256:13e698f54293db9f89122b0581843a782ad0934a4fe0172d2a980ba77fc61bb7",
+                "sha256:9fa520c1bacfb634fa7af20a76bcbd3d5fb390481724c597da32c719a7dca4b0"
+            ],
+            "version": "==2018.4.16"
+        },
+        "chardet": {
+            "hashes": [
+                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae",
+                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"
+            ],
+            "version": "==3.0.4"
+        },
+        "idna": {
+            "hashes": [
+                "sha256:2c6a5de3089009e3da7c5dde64a141dbc8551d5b7f6cf4ed7c2568d0cc520a8f",
+                "sha256:8c7309c718f94b3a625cb648ace320157ad16ff131ae0af362c9f21b80ef6ec4"
+            ],
+            "version": "==2.6"
+        },
+        "lxml": {
+            "hashes": [
+                "sha256:01c45df6d90497c20aa2a07789a41941f9a1029faa30bf725fc7f6d515b1afe9",
+                "sha256:0c9fef4f8d444e337df96c54544aeb85b7215b2ed7483bb6c35de97ac99f1bcd",
+                "sha256:0e3cd94c95d30ba9ca3cff40e9b2a14e1a10a4fd8131105b86c6b61648f57e4b",
+                "sha256:0e7996e9b46b4d8b4ac1c329a00e2d10edcd8380b95d2a676fccabf4c1dd0512",
+                "sha256:1858b1933d483ec5727549d3fe166eeb54229fbd6a9d3d7ea26d2c8a28048058",
+                "sha256:1b164bba1320b14905dcff77da10d5ce9c411ac4acc4fb4ed9a2a4d10fae38c9",
+                "sha256:1b46f37927fa6cd1f3fe34b54f1a23bd5bea1d905657289e08e1297069a1a597",
+                "sha256:231047b05907315ae9a9b6925751f9fd2c479cf7b100fff62485a25e382ca0d4",
+                "sha256:28f0c6652c1b130f1e576b60532f84b19379485eb8da6185c29bd8c9c9bc97bf",
+                "sha256:34d49d0f72dd82b9530322c48b70ac78cca0911275da741c3b1d2f3603c5f295",
+                "sha256:3682a17fbf72d56d7e46db2e80ca23850b79c28cfe75dcd9b82f58808f730909",
+                "sha256:3cf2830b9a6ad7f6e965fa53a768d4d2372a7856f20ffa6ce43d2fe9c0d34b19",
+                "sha256:5b653c9379ce29ce271fbe1010c5396670f018e78b643e21beefbb3dc6d291de",
+                "sha256:65a272821d5d8194358d6b46f3ca727fa56a6b63981606eac737c86d27309cdd",
+                "sha256:691f2cd97cf026c611df1ea5055755eec7f878f2d4f4330dc8686583de6fc5fd",
+                "sha256:6b6379495d3baacf7ed755ac68547c8dff6ce5d37bf370f0b7678888dc1283f9",
+                "sha256:75322a531504d4f383264391d89993a42e286da8821ddc5ac315e57305cb84f0",
+                "sha256:7f457cbda964257f443bac861d3a36732dcba8183149e7818ee2fb7c86901b94",
+                "sha256:7ff1fc76d8804e0f870c343a72007ff587090c218b0f92d8ee784ac2b6eaf5b9",
+                "sha256:8523fbde9c2216f3f2b950cb01ebe52e785eaa8a07ffeb456dd3576ca1b4fb9b",
+                "sha256:8f37627f16e026523fca326f1b5c9a43534862fede6c3e99c2ba6a776d75c1ab",
+                "sha256:a7182ea298cc3555ea56ffbb0748fe0d5e0d81451e2bc16d7f4645cd01b1ca70",
+                "sha256:abbd2fb4a5a04c11b5e04eb146659a0cf67bb237dd3d7ca3b9994d3a9f826e55",
+                "sha256:accc9f6b77bed0a6f267b4fae120f6008a951193d548cdbe9b61fc98a08b1cf8",
+                "sha256:bd88c8ce0d1504fdfd96a35911dd4f3edfb2e560d7cfdb5a3d09aa571ae5fbae",
+                "sha256:c557ad647facb3c0027a9d0af58853f905e85a0a2f04dcb73f8e665272fcdc3a",
+                "sha256:defabb7fbb99f9f7b3e0b24b286a46855caef4776495211b066e9e6592d12b04",
+                "sha256:e2629cdbcad82b83922a3488937632a4983ecc0fed3e5cfbf430d069382eeb9b"
+            ],
+            "index": "pypi",
+            "version": "==4.2.1"
+        },
+        "requests": {
+            "hashes": [
+                "sha256:6a1b267aa90cac58ac3a765d067950e7dbbf75b1da07e895d1f594193a40a38b",
+                "sha256:9c443e7324ba5b85070c4a818ade28bfabedf16ea10206da1132edaa6dda237e"
+            ],
+            "index": "pypi",
+            "version": "==2.18.4"
+        },
+        "urllib3": {
+            "hashes": [
+                "sha256:06330f386d6e4b195fbfc736b297f58c5a892e4440e54d294d7004e3a9bbea1b",
+                "sha256:cc44da8e1145637334317feebd728bd869a35285b93cbb4cca2577da7e62db4f"
+            ],
+            "version": "==1.22"
+        }
+    },
+    "develop": {
+        "atomicwrites": {
+            "hashes": [
+                "sha256:240831ea22da9ab882b551b31d4225591e5e447a68c5e188db5b89ca1d487585",
+                "sha256:a24da68318b08ac9c9c45029f4a10371ab5b20e4226738e150e6e7c571630ae6"
+            ],
+            "version": "==1.1.5"
+        },
+        "attrs": {
+            "hashes": [
+                "sha256:4b90b09eeeb9b88c35bc642cbac057e45a5fd85367b985bd2809c62b7b939265",
+                "sha256:e0d0eb91441a3b53dab4d9b743eafc1ac44476296a2053b6ca3af0b139faf87b"
+            ],
+            "version": "==18.1.0"
+        },
+        "more-itertools": {
+            "hashes": [
+                "sha256:2b6b9893337bfd9166bee6a62c2b0c9fe7735dcf85948b387ec8cba30e85d8e8",
+                "sha256:6703844a52d3588f951883005efcf555e49566a48afd4db4e965d69b883980d3",
+                "sha256:a18d870ef2ffca2b8463c0070ad17b5978056f403fb64e3f15fe62a52db21cc0"
+            ],
+            "version": "==4.2.0"
+        },
+        "pluggy": {
+            "hashes": [
+                "sha256:7f8ae7f5bdf75671a718d2daf0a64b7885f74510bcd98b1a0bb420eb9a9d0cff",
+                "sha256:d345c8fe681115900d6da8d048ba67c25df42973bda370783cd58826442dcd7c",
+                "sha256:e160a7fcf25762bb60efc7e171d4497ff1d8d2d75a3d0df7a21b76821ecbf5c5"
+            ],
+            "version": "==0.6.0"
+        },
+        "py": {
+            "hashes": [
+                "sha256:29c9fab495d7528e80ba1e343b958684f4ace687327e6f789a94bf3d1915f881",
+                "sha256:983f77f3331356039fdd792e9220b7b8ee1aa6bd2b25f567a963ff1de5a64f6a"
+            ],
+            "version": "==1.5.3"
+        },
+        "pytest": {
+            "hashes": [
+                "sha256:39555d023af3200d004d09e51b4dd9fdd828baa863cded3fd6ba2f29f757ae2d",
+                "sha256:c76e93f3145a44812955e8d46cdd302d8a45fbfc7bf22be24fe231f9d8d8853a"
+            ],
+            "index": "pypi",
+            "version": "==3.6.0"
+        },
+        "six": {
+            "hashes": [
+                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9",
+                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb"
+            ],
+            "version": "==1.11.0"
+        }
+    }
+}

README.md

@@ -0,0 +1,21 @@
+# PriceDB Pull
+
+Pull historical prices for use in [GnuCash](https://www.gnucash.org/) and
+[Ledger CLI](https://www.ledger-cli.org/).
+
+## Purpose
+
+This tool can fetch historical price data from multiple sources, for specific
+time ranges. It focuses on low-resolution data: just a single price per day,
+per commodity pair.
+
+The time range can be specified manually or be deduced from the prices in an
+existing file. It can format the fetched prices for Ledger CLI, or insert them
+into an SQL-based GnuCash file.
+
+## Installation
+
+
+## Usage
+
+