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Python Code Samples

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30 matches
Git + Python easy

Merge branch no ff mock in Python

Simulate a Git non-fast-forward merge in Python, producing a synthetic merge commit log for branches with differing SHAs.

git merge simulation
Python
class MergeResult:
    def __init__(self, base, branch):
        self.base = base
        self.branch = branch
        self.commit_log = []
        self.merged = False

    def simulate_merge(self):
        """Simulate a 'no-ff' merge by creating a new commit that references both branches."""
        if self.base == s…
13 0 Open
Modern tooling easy

Configure ruff linter rules in pyproject.toml with Python

Reads an existing pyproject.toml and merges common ruff linter rules into the tool.ruff section using Python's tomllib.

ruff pyproject.toml tomllib
Python
import tomllib
from pathlib import Path

def configure_ruff_linter_rules(project_path: str = ".") -> dict:
    """Add common ruff linter rules to pyproject.toml if missing."""
    pyproject_path = Path(project_path) / "pyproject.toml"
    
    # Default config for ruff linter with practical rules
    ruff_config = {
 …
13 0 Open
Testing & modern typing easy

How to Merge TypedDicts in Python

Merge two TypedDict dictionaries with type-aware logic using NotRequired, **kwargs unpacking, and safe key updates.

typing typeddict dict
Python
from typing import TypedDict, NotRequired, merge  # hypothetical

class User(TypedDict):
    name: str
    email: NotRequired[str]
    age: NotRequired[int]

def merge_users(base: User, **overrides: User) -> User:
    """Merge two user dicts with typing-aware logic."""
    result: User = dict(base)
    for key, value …
13 0 Open
API design & gRPC easy

How to Implement a PATCH Partial Update Merge Dict in Python

Implements a recursive merge function that applies HTTP PATCH-like partial updates to a nested dictionary while preserving untouched fields.

http rest dict-merge
Python
import json

def patch_merge(target: dict, patch: dict) -> dict:
    """Simulate HTTP PATCH semantic: shallow-merge patch into a copy of target."""
    merged = target.copy()
    for key, value in patch.items():
        if isinstance(value, dict) and isinstance(merged.get(key), dict):
            merged[key] = patch_m…
13 0 Open
Big data & Spark easy

Hudi Upsert Mock Copy on Write in Python

Simulates Apache Hudi's Copy-on-Write upsert behavior by merging update records into a deep copy of base records, replacing matches or appending new ones.

hudi upsert copy-on-write
Python
import copy
from typing import Dict, List, Any

def upsert_copy_on_write(base_records: List[Dict[str, Any]], updates: List[Dict[str, Any]], key_field: str = "id") -> List[Dict[str, Any]]:
    """Simulate Hudi Copy-on-Write upsert: merge updates into a copy of base records."""
    result = copy.deepcopy(base_records)
 …
14 0 Open
Production deployment patterns easy

How to Merge Helm Chart Values Per Environment in Python

Merge default Helm chart values with environment-specific overrides using a recursive dictionary merge function, then write each environment's YAML file.

helm merge yaml
Python
from pathlib import Path
import json
import tempfile


DEFAULT_VALUES = {
    "image": "nginx:latest",
    "replicas": 1,
    "resources": {"cpu": "100m", "memory": "128Mi"},
}

ENV_OVERRIDES = {
    "dev": {"replicas": 1, "resources": {"cpu": "50m"}},
    "staging": {"replicas": 2, "resources": {"cpu": "250m", "memor…
11 0 Open

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Guide: free Python code samples library

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Samples are quick reference — one concept per page. For step-by-step teaching, use our Python tutorials. To test yourself, try quizzes or coding challenges. Clean up style with the Python formatter.