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3 years

Python Clean Code Tip: Use how and when to use decorators 👇

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3 years

Python clean code tip: Use enums to group related constants 👇

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3 years

Python Clean Code Tip: Check the quality of your code inside your CI pipeline Use: - black - code formatting - isort - optimize imports - bandit - check for security vulnerabilities - safety - check for security vulnerabilities of dependencies Github Actions Example 👇

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2 years

Python Clean Code Tip: Avoid using too many attributes on a single object. Try to cluster them to improve cohesion, reduce coupling, and improve readability 👇

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3 years

Python tip: To generate a random password you should use the secrets module For example, you can generate a random password of length 21 containing letters, number, and special characters👇

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3 years

Python Clean Code Tip: Use dataclasses when only storing attributes inside your class instances to reduce the amount of boilerplate code 👇

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3 years

Python Clean Code Tip: Don't use flags in functions Flags are variables passed to functions, which the function uses to determine its behavior. They are considered bad because functions should only perform one task. -> split your function into smaller functions.

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2 years

Python Clean Code Tip: Check the quality of your code inside your CI pipeline. - flake8 - style guide enforcer - black - code formatting - isort - optimize imports - bandit - check for security vulnerabilities - safety - check for security vulnerabilities of dependencies 👇

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3 years

Python Clean Code Tip: Use a list comprehension to filter lists instead of for loop 👇

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3 years

Python Clean Code Tip: Avoid using too many attributes on a single object. Try to cluster them to improve cohesion, reduce coupling, and improve readability 👇

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3 years

Python Clean Code Tip: Keep your arguments at a minimum Ideally, your functions should only have one to two arguments. If you need to provide more arguments to the function, you can create a config object which you pass to the function or split it into multiple functions.

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2 years

Python clean code tip: Use a dictionary to remove duplicates from a list and maintain order 👇

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3 years

Python clean code tip: Use dependency injection to simplify testing 👇

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2 years

Python Clean Code Tip: Avoid setting attributes of your objects outside of the constructor. Instead, implement methods that map to real-world concepts. Why? To ensure attributes exist and are easily discoverable. 👇

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3 years

Python Clean Code Tip: Avoid setting attributes of your objects outside of the constructor. Rather implement methods that map to real-world concepts 👇

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2 years

Python tip: You can merge dictionaries into a third one in one line by simply using **. Since Python 3.9, you can also use | operator.

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3 years

Python clean code tip: Avoid doing things only inside a single environment - e.g. production 👇

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3 years

Python clean code tip: Use protocol to define interface required by your function/method instead of using real objects This way your function/method defines what it needs 👇

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3 years

Python Clean Code Tip: Use dictionary to implement strategy pattern instead of long and complex if statements Hint: Dict keys can be tuples so you can use multiple parameters to select a function/method 👇

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3 years

Python Clean Code Tip: Use max to find an element with maximal value inside iterable. You can provide custom function as a key argument to find an element with maximal value for the provided function 👇

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2 years

Python clean code tip: Keep your API endpoints simple and fast - move all the unnecessary logic to background tasks Why? - prevent API timeouts - enable retries - simplify testing (no need for the API to run) 👇

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2 years

Python clean code tip: Use enums to group related constants. Why? Autocomplete Static type checking 👇

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2 years

Python clean code tip: Don’t use random to generate random numbers when you need them to be cryptographically strong Use secrets instead 👇

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2 years

Python clean code tip: Use contract testing when you want to verify the same behavior for different implementations. 👇

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2 years

Python clean code tip: Use HTTPStatus for status codes instead of magic numbers 👇

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2 years

Python Clean Code Tip: Use dataclasses when only storing attributes inside your class instances to reduce the amount of boilerplate code. 👇

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2 years

Python Clean Code Tip: Avoid empty except blocks -> try-except-pass. They lead to hard-to-find bugs. 👇

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2 years

Python clean code tip: Don't separate parts of your code with comments Introduce new methods instead 👇

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3 years

Python Clean Code Tip: Specify the most general type for inputs and the most specific type for outputs. 👇

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3 years

Python Clean Code Tip: Avoid using floats when you need precise results. Use Decimal instead. e.g. prices 👇

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3 years

Python Clean Code Tip: Use any to check if at least one element in iterable meets the criteria instead of for loop 👇

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2 years

Python tip (>=3.9): You can use .removeprefix() to remove the prefix from a string e.g. remove filename prefix 👇

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2 years

Python Clean Code Tip: Avoid storing things like secret keys, passwords, connection strings, and API keys inside your code. Instead, use a secrets management solution like AWS Secrets Manager or Vault 👇

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3 years

Python Clean Code Tip: Use singledispatch/singledispatchmethod to register different handlers based on input data type instead of IF statements with isinstance checks Hint: Useful for use cases such as reacting to different event types 👇

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3 years

Python Clean Code Tip: Avoid long chains of collaborations to avoid high coupling and breaking encapsulation 👇

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2 years

Python clean code tip: Use Protocol to define the interface required by your function/method instead of using real objects. This way, your function/method defines what it needs. 👇

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2 years

Python Clean Code Tip: Avoid using the variable/parameter type inside your variable/parameter name. Use type hints instead. 👇

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3 years

10 Free FastAPI resources to take your skill to the next level 🧵 👇

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2 years

Python Clean Code Tip: Use preconditions to ensure the integrity of your objects. 👇

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2 years

Python clean code tip: Don't return a tuple of two objects of the same type from your methods Rather introduce new data structure to return more complex data Why? To prevent misusage because of switched position - access values by name 👇

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3 years

Python Clean Code Tip: Use HTTPStatus from http (it's inside the standard library) to avoid "magic" numbers for statuses inside your code 👇

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3 years

Python Clean Code Tip: Use the defaultdict to automatically handle cases where the key does not exist yet instead of using IF statement 👇

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3 years

Python Clean Code Tip: Use automatic code formatter such as black to format your code 👇

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2 years

Python Clean Code Tip: When your module becomes too big you can restructure it to a package while keeping all the imports from the module as they were. 👇

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2 years

Python tip: You can use dictionary to implement switch-like behaviour 👇

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3 years

Python Clean Code Tip: Don't add redundant context Do not add unnecessary data to variable names, especially if you're working with classes.

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1 year

Python clean code tip: Use enums to group related constants. Why? - Autocomplete - Static type checking 👇

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2 years

Python clean code tip: Use a dictionary to easily switch between different actions instead of IF Very useful when dealing with enum-like values Why? - smaller specialized methods for processing - one simple path - no branching - simple to extend 👇

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2 years

FastAPI: You can protect API endpoints with API key 👇

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19 days

Python clean code tip: Use enums to group related constants. Example 👇

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2 years

Python clean code tip: Use .exception() instead of .error() to get traceback logged together with the exception 👇

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1 year

Python clean code tip: Use dependency injection to simplify testing - avoid the need for patching Useful when: - replace DB implementation of store with in-memory one for tests (faster tests) - replace 3rd party integrations with in-memory ones (faster/more reliable tests) 👇

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3 years

Python Clean Code Tip: When your module becomes too big you can restructure it to package while keeping all the imports from the module as they were 👇

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2 years

Python clean code tip: Avoid checking if the key already exists in a dictionary before using it by using defaultdict 👇

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3 years

Python Clean Code Tip: Use all to check whether all elements in an iterable meet the criteria 👇

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3 years

Python Clean Code Tip: Use NullObjects instead of None Hint: None/null doesn't exist in the real world 👇

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2 years

Python Clean Code Tip: Use min to find an element with minimal value inside an iterable. You can provide a custom function as a key argument to serve as a key for the min comparison 👇

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5 months

Python Clean Code Tip: Use retries when calling 3rd party API They are not responsive/down/unavailable much more frequently than anticipated 👇

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3 years

Python Clean Code Tip: Avoid double negatives - like not is not valid 👇

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2 years

Python clean code tip: Use singledispatch instead of is instance 👇

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1 year

Python Tip: Check the quality of your code inside your CI pipeline. - flake8 - style guide enforcer - black - code formatting - isort - optimize imports - bandit - check for security vulnerabilities - safety - check for security vulnerabilities of dependencies 👇

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2 years

Python clean code tip: Avoid doing things in only one environment (e.g., production because of rate limits of external API) Rather use interface and dummy implementation together with mapping 👇

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1 year

Python Clean Code Tip: Avoid using too many attributes on a single object. Try to cluster them to improve cohesion, reduce coupling, and improve readability 👇

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3 years

Python Clean Code Tip: Favor real objects over primitive types such as dictionaries 👇

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2 years

Python clean code tip: Always use paginated queries Use "last evaluated record" approach to paginate instead of offset This way you limit database load per single query 👇

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3 years

Python tip: Use bandit to check your code for known security vulnerabilities such as eval() 👇

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1 year

Python clean code tip: Use singledispatch instead of isinstance 👇

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3 years

Python Clean Code Tip: Use secrets module to generate cryptographically strong random strings such as one-time passwords and access tokens 👇

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3 years

Python tip: Implement method on objects - they should tell you what you need to know. Don't leak logic to other places. 👇

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1 year

Docker Best Practices for Python Developers Looks at several best practices to make your Dockerfiles and images cleaner, leaner, and more secure. by @amal_ytics #Docker #Python @Docker

Docker Best Practices for Python Developers

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1 year

Python Clean Code Tip: Avoid setting attributes of your objects outside of the constructor. Instead, implement methods that map to real-world concepts. Why? To ensure attributes exist and are easily discoverable. Also, to encapsulate knowledge in a single place. 👇

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2 years

Python Clean Code Tip: Use sum to sum the values of all elements inside an iterable instead of a for loop. Why? Don't re-invent the wheel! sum is much faster 👇

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11 months

FastAPI tip: You can easily add WebSockets to your app with @app .websocket(). 👇

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2 years

Python clean code tip: Prefer null/empty/dummy object over null Why? - avoid IF pollution - null doesn't exist in the real world 👇

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3 years

Python Clean Code Tip: Avoid using variable/parameter type inside variable/parameter name Use type hints instead 👇

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2 years

Python clean code tip: Define abstract class attributes for your mixins 👇

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3 years

Python Clean Code Tip: Use docstrings to document usage of your modules/classes/functions 👇

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2 years

FastAPI tip: You can use strawberry to build GraphQL API with FastAPI 👇

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11 months

Docker best practice: Use multistage builds to reduce the size of the production image. 👇

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2 years

Python clean code tip: Don't allow CORS for all domains - be explicit 👇

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2 years

Python Clean Code Tip: Use operator overloading to enable the usage of operators such as +, -, /, *, ... on your instances. 👇

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3 years

Did you know? You can enforce user to use only keyword arguments when calling your function An example👇

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3 years

Django tip: Use Flower to monitor your Celery 👇

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21 days

Python clean test tip: The tests we write should cover: - all happy paths - edge/corner/boundary cases - negative test cases - security and illegal issues 👇

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1 year

Python clean code tip: Use contract testing when you want to verify the same behavior for different implementations Useful when: - You want to improve the current implementation and switch between old/new using a feature flag - You want an in-memory test double 👇

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5 months

Python Clean Code Tip: Use dependency injection - inject objects that interact with the outer world (e.g., DB, 3rd-party APIs, ...) Pros: - easier & faster testing of business logic -> easily replace dependencies with mocks/stubs/in-memory implementations 👇

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2 years

Python clean test tip: A test should not depend on the state of any other tests or external services. 👇

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1 year

Docker best practice: Limit CPU and memory for your containers to prevent crippling the rest of the containers on the machine. 👇

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3 years

Python Clean Code Tip: Learn how and when to use context managers 👇

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1 year

Python Clean Code Tip: Avoid storing things like secret keys, passwords, connection strings, and API keys inside your code. Instead, use a secrets management solution like AWS Secrets Manager or Vault. This prevents secrets leakage via version control 👇

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2 years

Python clean code tip: Use enumerate when you need to iterate over iterable and have an index at the same time 👇

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2 years

Python tip: Did you know you can generate a complete HTML page with a yearly calendar using Python?

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3 years

Python clean code tip: Use contract test when you want to verify the same behavior for different implementations 👇

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2 years

Python Clean Code Tip: Use __post_init__ hook when working with dataclasses to apply preconditions to ensure the integrity of your objects. 👇

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3 years

Can't decide between Flask and Django? 🧵This one is for you👇

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2 years

Python tip: You can use a dictionary to remove duplicates from a list while preserving the order of elements Dictionary preserve insertion order 👇

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1 year

Parallelism, Concurrency, and AsyncIO in Python - by example Looks at how to speed up CPU-bound and IO-bound operations with multiprocessing, threading, and AsyncIO and when you should use each. by @amal_ytics #Python

Parallelism, Concurrency, and AsyncIO in Python - by example

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2 years

Python clean code tip: Avoid naive datetime objects - use timezone-aware ones instead Use them always in UTC and only present them to users in their local time zone 👇

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3 years

Python tip: You can split a string on all non-word characters by using re.split non-word characters - characters that are not letters, numbers or _ An example👇

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2 years

BREAKING: Django will be used inside navigation system in the next Mars Rover.

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