Add presets

Author: johnsutor

CHANGELOG.md

@@ -0,0 +1,4 @@
+# Changelog 
+
+## 1.1.0
+- Added support for using presets of questions, including the Grind 75, Grind 169, and the original Blind 75. This argument is an optional argument instead of inputting urls or a file of questions. 

README.md

@@ -22,16 +22,19 @@ $ pip install leetcode-study-tool
 
 ## Usage 
 ```shell
-usage: leetcode-study-tool [-h] (--url URL | --file FILE) [--format {cards}] [--output OUTPUT] [--language LANGUAGE]
+usage: leetcode-study-tool [-h] (--url URL | --file FILE | --preset {blind_75,grind_75,grind_169}) [--format {anki}] [--csrf CSRF] [--output OUTPUT] [--language LANGUAGE]
 
 Generates problems from LeetCode questions in a desired format.
 
 options:
   -h, --help            show this help message and exit
   --url URL, -u URL     The URL(s) or slug(s) of the LeetCode question(s) to generate problem(s) for. (default: None)
   --file FILE, -f FILE  The file containing the URL(s) or slug(s) of the LeetCode question(s) to generate problem(s) for. (default: None)
-  --format {cards}, -F {cards}
-                        The format to save the Anki problem(s) in. (default: cards)
+  --preset {blind_75,grind_75,grind_169}, -p {blind_75,grind_75,grind_169}
+                        The preset to use to generate problem(s) for. (default: None)
+  --format {anki}, -F {anki}
+                        The format to save the Leetcode problem(s) in. (default: anki)
+  --csrf CSRF, -c CSRF  The CSRF token to use for LeetCode authentication. (default: None)
   --output OUTPUT, -o OUTPUT
                         The output file to write the problem(s) to. (default: output.txt)
   --language LANGUAGE, -l LANGUAGE

leetcode_study_tool/cli.py

@@ -1,6 +1,7 @@
 import argparse
 
-from leetcode_study_tool.creator import ProblemsCreator
+from .constants.presets import PRESET_MAP
+from .creator import ProblemsCreator
 
 
 def parse_args() -> argparse.Namespace:
@@ -41,6 +42,14 @@ def parse_args() -> argparse.Namespace:
         ),
     )
 
+    input.add_argument(
+        "--preset",
+        "-p",
+        type=str,
+        choices=PRESET_MAP.keys(),
+        help=("The preset to use to generate problem(s) for."),
+    )
+
     parser.add_argument(
         "--format",
         "-F",

leetcode_study_tool/constants/presets.py

@@ -2,10 +2,10 @@
 import html
 import os
 import re
-from functools import partial
 from multiprocessing import Pool
 from typing import List, Union
 
+from .constants.presets import PRESET_MAP
 from .formatters import FORMAT_MAP
 from .outputs import SAVE_MAP
 from .queries import generate_session, get_data, get_slug
@@ -42,17 +42,16 @@ def __init__(self, args: Union[argparse.Namespace, dict]) -> None:
             with open(args["file"], "r") as f:
                 self.urls = f.read().splitlines()
 
+        elif args.get("preset"):
+            self.urls = PRESET_MAP[args["preset"]]
+
     def create_problems(self) -> None:
         """
         Create the problems for Anki.
         """
         with Pool() as pool:
             problems = pool.map(
-                partial(
-                    self._generate_problem,
-                    language=self.language,
-                    format=self.format,
-                ),
+                self._generate_problem,
                 self.urls,
             )
 

leetcode_study_tool/creator.py

@@ -110,11 +110,10 @@ def format_anki(url: str, slug: str, data: dict):
                 for solution in data["solutions"]
             ],
         )
-    problem += "<strong>LeetCode User Solutions:</strong><br>"
 
     problem += ";"
 
-    problem += " ".join([tag["slug"] for tag in data["tags"]])
+    problem += " ".join([tag["slug"].lower() for tag in data["tags"]])
 
     # Makes code easier to read to remove at the end
     problem = dedent(problem).replace("\n", "")

leetcode_study_tool/formatters.py

@@ -12,7 +12,6 @@ def save_string(problems: List[Union[str, None]], file: str) -> None:
     file : str
         The file to save the problems to.
     """
-    print("foo")
     with open(file + ".txt", "w") as f:
         for problem in problems:
             if problem:

leetcode_study_tool/outputs.py

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "leetcode-study-tool"
-version = "1.0.2"
+version = "1.1.0"
 description = "A tool for studying Leetcode with Python"
 authors = [{name="John Sutor", email="johnsutor3@gmail.com" }]
 license = {file = "LICENSE.txt"}
@@ -47,10 +47,13 @@ leetcode-study-tool = "leetcode_study_tool.cli:main"
 
 [project.urls]
 homepage = "https://github.com/johnsutor/leetcode-study-tool"
+repository = "https://github.com/johnsutor/leetcode-study-tool"
+changelog = "https://github.com/johnsutor/leetcode-study-tool/blob/main/CHANGELOG.md"
 
 [tool.mypy]
 exclude = [
-    "build"
+    "build",
+    "scripts"
 ]
 ignore_missing_imports = true
 

pyproject.toml

@@ -0,0 +1,48 @@
+#!/usr/bin/env python
+# encoding: utf-8
+# Utility script to generate lists of presets for the leetcode_study_tool. This includes
+# the Blind 75, the Grind 75, and the Grind 169.
+
+import json
+import sys
+import urllib
+
+import requests
+from bs4 import BeautifulSoup
+
+
+def main(url: str, output_file: str = "presets.txt"):
+    response = requests.get(url)
+    problems = []
+
+    soup = BeautifulSoup(response.content, "html.parser")
+
+    for link in soup.find_all("a"):
+        # save only the links that are leetcode problems
+        url = urllib.parse.urlparse(link.get("href"))
+
+        try:
+            if (
+                url.path.startswith("/problems/")
+                and url.netloc == "leetcode.com"
+            ):
+                problems.append(url.geturl())
+        except Exception as e:
+            print(e)
+            if (
+                url.path.decode().startswith("/problems/")
+                and url.netloc.decode() == "leetcode.com"
+            ):
+                problems.append(url.geturl().decode())
+
+    with open(output_file, "w") as f:
+        json.dump(problems, f)
+
+
+if __name__ == "__main__":
+    url = sys.argv[1]
+    if sys.argv[2]:
+        output_file = sys.argv[2]
+    else:
+        output_file = "presets.txt"
+    main(url, output_file)

scripts/presets.py

@@ -8,7 +8,7 @@
 class TestFormatters(unittest.TestCase):
     def setUp(self) -> None:
         super().setUp()
-        self.correct_anki_formatted_two_sum_problem = '    <h1>        <a href="https://leetcode.com/problems/two-sum/">1. Two Sum</a>    </h1>    <p>        <p>Given an array of integers <code>nums</code>&nbsp;and an integer <code>target</code>, return <em>indices of the two numbers such that they add up to <code>target</code></em>.</p><p>You may assume that each input would have <strong><em>exactly</em> one solution</strong>, and you may not use the <em>same</em> element twice.</p><p>You can return the answer in any order.</p><p>&nbsp;</p><p><strong class="example">Example 1:</strong></p><pre><strong>Input:</strong> nums = [2,7,11,15], target = 9<strong>Output:</strong> [0,1]<strong>Explanation:</strong> Because nums[0] + nums[1] == 9, we return [0, 1].</pre><p><strong class="example">Example 2:</strong></p><pre><strong>Input:</strong> nums = [3,2,4], target = 6<strong>Output:</strong> [1,2]</pre><p><strong class="example">Example 3:</strong></p><pre><strong>Input:</strong> nums = [3,3], target = 6<strong>Output:</strong> [0,1]</pre><p>&nbsp;</p><p><strong>Constraints:</strong></p><ul>\t<li><code>2 &lt;= nums.length &lt;= 10<sup>4</sup></code></li>\t<li><code>-10<sup>9</sup> &lt;= nums[i] &lt;= 10<sup>9</sup></code></li>\t<li><code>-10<sup>9</sup> &lt;= target &lt;= 10<sup>9</sup></code></li>\t<li><strong>Only one valid answer exists.</strong></li></ul><p>&nbsp;</p><strong>Follow-up:&nbsp;</strong>Can you come up with an algorithm that is less than <code>O(n<sup>2</sup>)</code><font face="monospace">&nbsp;</font>time complexity?    <p>    <strong>Tags:</strong><br>    <ul>        <li>Array</li><li>Hash Table</li>    </ul>    ;<strong>NeetCode Solution:</strong><br><a href="https://youtube.com/watch?v=KLlXCFG5TnA">Two Sum - Leetcode 1 - HashMap - Python</a></li><br><br>    <strong>LeetCode User Solutions:</strong><br>    <ul>        <li>https://leetcode.com/problems/two-sum/solutions/2/1/</li><li>https://leetcode.com/problems/two-sum/solutions/3/1/</li><li>https://leetcode.com/problems/two-sum/solutions/4/1/</li><li>https://leetcode.com/problems/two-sum/solutions/6/1/</li><li>https://leetcode.com/problems/two-sum/solutions/7/1/</li><li>https://leetcode.com/problems/two-sum/solutions/8/1/</li><li>https://leetcode.com/problems/two-sum/solutions/9/1/</li><li>https://leetcode.com/problems/two-sum/solutions/10/1/</li><li>https://leetcode.com/problems/two-sum/solutions/11/1/</li><li>https://leetcode.com/problems/two-sum/solutions/12/1/</li>    </ul>    <strong>LeetCode User Solutions:</strong><br>;array hash-table'
+        self.correct_anki_formatted_two_sum_problem = '    <h1>        <a href="https://leetcode.com/problems/two-sum/">1. Two Sum</a>    </h1>    <p>        <p>Given an array of integers <code>nums</code>&nbsp;and an integer <code>target</code>, return <em>indices of the two numbers such that they add up to <code>target</code></em>.</p><p>You may assume that each input would have <strong><em>exactly</em> one solution</strong>, and you may not use the <em>same</em> element twice.</p><p>You can return the answer in any order.</p><p>&nbsp;</p><p><strong class="example">Example 1:</strong></p><pre><strong>Input:</strong> nums = [2,7,11,15], target = 9<strong>Output:</strong> [0,1]<strong>Explanation:</strong> Because nums[0] + nums[1] == 9, we return [0, 1].</pre><p><strong class="example">Example 2:</strong></p><pre><strong>Input:</strong> nums = [3,2,4], target = 6<strong>Output:</strong> [1,2]</pre><p><strong class="example">Example 3:</strong></p><pre><strong>Input:</strong> nums = [3,3], target = 6<strong>Output:</strong> [0,1]</pre><p>&nbsp;</p><p><strong>Constraints:</strong></p><ul>\t<li><code>2 &lt;= nums.length &lt;= 10<sup>4</sup></code></li>\t<li><code>-10<sup>9</sup> &lt;= nums[i] &lt;= 10<sup>9</sup></code></li>\t<li><code>-10<sup>9</sup> &lt;= target &lt;= 10<sup>9</sup></code></li>\t<li><strong>Only one valid answer exists.</strong></li></ul><p>&nbsp;</p><strong>Follow-up:&nbsp;</strong>Can you come up with an algorithm that is less than <code>O(n<sup>2</sup>)</code><font face="monospace">&nbsp;</font>time complexity?    <p>    <strong>Tags:</strong><br>    <ul>        <li>Array</li><li>Hash Table</li>    </ul>    ;<strong>NeetCode Solution:</strong><br><a href="https://youtube.com/watch?v=KLlXCFG5TnA">Two Sum - Leetcode 1 - HashMap - Python</a></li><br><br>    <strong>LeetCode User Solutions:</strong><br>    <ul>        <li>https://leetcode.com/problems/two-sum/solutions/2/1/</li><li>https://leetcode.com/problems/two-sum/solutions/3/1/</li><li>https://leetcode.com/problems/two-sum/solutions/4/1/</li><li>https://leetcode.com/problems/two-sum/solutions/6/1/</li><li>https://leetcode.com/problems/two-sum/solutions/7/1/</li><li>https://leetcode.com/problems/two-sum/solutions/8/1/</li><li>https://leetcode.com/problems/two-sum/solutions/9/1/</li><li>https://leetcode.com/problems/two-sum/solutions/10/1/</li><li>https://leetcode.com/problems/two-sum/solutions/11/1/</li><li>https://leetcode.com/problems/two-sum/solutions/12/1/</li>    </ul>    ;array hash-table'
 
     def test_format_list_element(self):
         self.assertEqual(