Debug and Explain
Paste broken code. We send it back working with notes on what failed and why. Useful when you wrote the assignment yourself and the script crashes or returns the wrong answer.
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# Per-course pass rate from a grade CSV — full pipeline in 6 lines
import pandas as pd
df = pd.read_csv("grades.csv") # columns: student, course, score
pass_rate = (
df.assign(passed=df["score"] >= 60)
.groupby("course")["passed"]
.mean()
.sort_values(ascending=False)
)
print(pass_rate.head(3))
# course
# CS50P 0.94
# CS229 0.87
# DATA100 0.79 Paste broken code. We send it back working with notes on what failed and why. Useful when you wrote the assignment yourself and the script crashes or returns the wrong answer.
Complete code, README, requirements.txt, and a one-page walkthrough. Tested before delivery on the Python version your brief specifies.
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Twelve academic areas where Python is the language of instruction or the implementation tool. Each one is handled by an expert who has shipped that work in production.
Lists, dicts, sets, deques, heaps, priority queues, linked lists, binary trees, tries, graphs.
Sorting, searching, dynamic programming, graph traversal, greedy, divide and conquer, Big-O analysis.
Classes, inheritance, polymorphism, ABCs, dataclasses, descriptors, metaclasses, design patterns.
Threading, multiprocessing, semaphores, IPC, file I/O, scheduling problems implemented in Python.
SQLAlchemy, Django ORM, raw SQL, schema design, query optimization, transactions, migrations.
Sockets, HTTP, TCP/UDP servers, async I/O with asyncio, Twisted, Tornado, WebSockets.
scikit-learn, PyTorch, TensorFlow, Hugging Face, Keras, decision trees, neural nets, transformers.
Hashing, AES and RSA with the cryptography library, penetration testing scripts, CTF challenges.
Graph theory, combinatorics, set theory, propositional logic implemented in Python or SymPy.
Lexers, parsers, AST manipulation, PLY, Lark, recursive descent, code generation, interpreters.
Celery, Ray, Dask, message queues, RabbitMQ, Redis, distributed task graphs, MapReduce.
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If your topic is not listed, send the brief anyway. We cover every Python library used in undergraduate and graduate coursework.
Senior Python and ML Engineer
8+ years in production Python. Works with PyTorch, TensorFlow, scikit-learn, pandas, FastAPI, and Hugging Face. Handles most ML and data-science briefs.
Full-Stack Python Developer
6 years building Django and Flask apps in production. Works with Django, Flask, FastAPI, PostgreSQL, REST APIs, Celery, and Docker. Web app assignments land on her desk.
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Live coding on real homework prompts. Pass mark is 90% on correctness, style, and the explanation.
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First five deliveries reviewed by a senior. Acceptance must hit 95% before unrestricted assignments.
Every delivery includes a walkthrough you can actually follow. The point is for you to understand the code well enough to explain it in class.
We write at your skill level. Intro courses get straightforward code. Senior courses get production patterns. We do not over-engineer to look impressive.
If your assignment is about practicing recursion and we hand you a one-line list comprehension, you learn nothing. We solve the problem the way the rubric expects.
We are a paid Python developer service. We do not call it "tutoring" to dodge the conversation. The trade-off and the risks are your decision to make.
Same problem, 240x speed difference. The looping version on the left is what most students submit. The vectorized pandas version on the right is what we deliver.
import pandas as pd
df = pd.read_csv("returns.csv")
adjusted = []
for i, row in df.iterrows():
if row["price"] > 0:
adjusted.append(row["price"] * 0.95)
else:
adjusted.append(0.0)
df["adjusted"] = adjusted
# 50,000 rows: ~12 seconds, eats memory import numpy as np
import pandas as pd
df = pd.read_csv("returns.csv")
df["adjusted"] = np.where(
df["price"] > 0,
df["price"] * 0.95,
0.0,
)
# 50,000 rows: ~0.05 seconds, no Python loop Real Python projects we delivered to students. Preview the screenshot or download the full ZIP.
AI · Search · UC Berkeley CS188 Agent navigates Pacman mazes using DFS, BFS, UCS, and A* search with admissible consistent heuristics. Implementation covers the corners problem, food search, and greedy closest-dot pathfinding.
Quant Finance · Backtesting Quantitative engine ingests a four-ETF allocation, computes total return, annualized return, volatility, Sharpe ratio, max drawdown, recovery period, correlation matrix, and the monthly return distribution.
Optimization · NP-Complete · GUI Hybrid GA plus WoC solver tackles a chosen NP-complete problem through evolutionary search, aggregates expert solutions into a consensus path, and renders results in an interactive GUI.
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Eight failure modes that turn up over and over. If your code is breaking on one of these, send the brief and we quote it the same hour.
Refactor to .loc-based indexing, eliminate chained assignment.
Add select_related and prefetch_related on the right join paths.
Trace blocking calls, add missing awaits, replace requests with httpx.
Move scaling and feature selection inside the cross-validation Pipeline.
Add explicit reshape calls, assert shapes at every step.
Apply the application factory pattern, use current_app for blueprint registration.
Profile with tracemalloc, fix dangling references, close handles.
Pin exact versions with pip-tools, document the Python version.
Every file is written from scratch for your assignment. We run a plagiarism check before we send it to you.
If we miss your deadline, you get a full refund. Written into every order.
If it doesn't match the rubric, we fix it free.
If the code has a bug that stops it running on the Python version in your brief, you get a full refund.
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Your files are removed from our servers 15 days after delivery.
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