Remove Python pyc File

Mar 16, 2016 in python

Python interpreter在執行的時候會在每個package底下產生__pycache__ folder and .pyc, *.pyo file
一般而言這些file不會進入版本控管所以在.gitigore中通常會有.py[co], pycache
但以上設定卻會在git branch switch時導致pyc, pyo殘留問題
以下介紹3種方法來處理

django學習筆記

Feb 19, 2016 in python

1. Coding Style
- 1.1. Use Explicit Relative Imports
2. Layout Django Project
3. Setting Files
- 3.1. 如何處理多環境設定(production, staging, local)
- 3.2. 重要的secret key問題(secret key不該進入version control)
- 3.3. 當環境限制無法使用environment variable時怎麼做呢
- 3.4. Requirements Files也要照環境分開
- 3.5. Setting Files中的Path不要使用Absolute Path
4. Model
- 4.1. Model Inheritance
- 4.2. Model Design Ordering
- 4.3. When to Use Null and Blank
- 4.4. When to Use BinaryField
- 4.5. Try to Avoid Using Generic Relations
- 4.6. The Model meta API
- 4.7. Fat Models
5. Queries and the Database Layer
- 5.1. Use get object or 404() for Single Objects instead of get()
- 5.2. Be Careful With Queries That Might Throw Exceptions
  - 5.2.1. ObjectDoesNotExist vs. DoesNotExist
  - 5.2.2. When You Just Want One Object but Get Three Back
- 5.3. Transactions
  - 5.3.1. Wrapping Each HTTP Request in a Transaction
  - 5.3.2. Explicit Transaction Declaration
6. Function- and Class-Based Views
- 6.1. When to Use FBVs or CBVs
- 6.2. Keep View Logic Out of URLConfs
- 6.3. Use URL Namespaces
- 6.4. Django Views Are Functions
- 6.5. Don't Use locals() as Views Context
7. Function-Based Views
- 7.1. Use Decorator To Modify Request And Response
8. Class-Based Views
- 8.1. Guidelines When Working With CBVs
- 8.2. Using Mixins With CBVs
- 8.3. Which Django GCBV Should Be Used for What Task?
- 8.4. General Tips for Django CBVs
- 8.5. How GCBVs and Forms Fit Together
  - 8.5.1. Views + ModelForm Example
  - 8.5.2. Views + Form Example
- 8.6. Using Just django.views.generic.View
9. Form Fundamentals
- 9.1. Validate All Incoming Data With Django Forms
- 9.2. Always Use CSRF Protection and POST With HTTP Forms That Modify Data
- 9.3. Understand How to Add Django Form Instance Attributes
- 9.4. Know How Form Validation Works
  - 9.4.1. ModelForm Data Is Saved to the Form, Then the Model In- stance
- 9.5. Add Errors to Forms with Form.add error()
10. Common Patterns for Forms
- 10.1. Pattern 1: Simple ModelForm With Default Validators
- 10.2. Pattern 2: Custom Form Field Validators in ModelForms
  - 10.2.1. put validator in Model
  - 10.2.2. put validator in Form
- 10.3. Pattern 3: Overriding the Clean Stage of Validation
- 10.4. Pattern 4: Hacking Form Fields (2 CBVs, 2 Forms, 1 Model)
- 10.5. Pattern 5: Reusable Search Mixin View
11. Templates
- 11.1. Keep Templates Mostly in templates/
- 11.2. Template Architecture Patterns
- 11.3. Limit Processing in Templates
- 11.4. Exploring Template Inheritance
- 11.5. block.super Gives the Power of Control
- 11.6. Useful Things to Consider
- 11.7. Error Page Templates
12. Template Tags and Filters
- 12.1. Filters Are Functions
  - 12.1.1. When to Write Filters
- 12.2. Custom Template Tags
  - 12.2.1. When to Write Template Tags
- 12.3. Naming Your Template Tag Libraries
- 12.4. Loading Your Template Tag Modules
  - 12.4.1. Watch Out for This Crazy Anti-Pattern
13. Building REST APIs
- 13.1. Fundamentals of Basic REST API Design
- 13.2. Implementing a Simple JSON API
- 13.3. REST API Architecture
- 13.4. Shutting Down an External API
- 13.5. Rate Limiting Your API
14. Working With the Django Admin
- 14.1. It's Not for End Users
- 14.2. Add str to Model
- 14.3. Adding Callables to ModelAdmin Classes
- 14.4. Django's Admin Documentation Generator
- 14.5. Securing the Django Admin and Django Admin Docs
15. Dealing With the User Model
- 15.1. Use Django's Tools for Finding the User Model
  - 15.1.1. Use settings.AUTH_USER_MODEL for Foreign Keys to User
  - 15.1.2. Don't Use get user model() for Foreign Keys to User
- 15.2. Custom User Fields for Django 1.8 Projects
16. Third-Party Packages
- 16.1. Wiring Up Django Packages: The Basics
17. Testing
- 17.1. Useful Library for Testing Django Projects
- 17.2. How to Structure Tests
- 17.3. How to Write Unit Tests
- 17.4. What About Integration Tests?
- 17.5. Continuous Integration
- 17.6. Setting Up the Test Coverage Game
18. Documentation
- 18.1. Use reStructuredText for Python Docs
- 18.2. Use Sphinx to Generate Documentation From reStructuredText
- 18.3. What Docs Should Django Projects Contain?
- 18.4. Additional Documentation Resources
19. Finding and Reducing Bottlenecks
- 19.1. Should You Even Care?
- 19.2. Speed Up Query-Heavy Pages
- 19.3. Know What Doesn't Belong in the Database
- 19.4. Cache Queries With Memcached or Redis
- 19.5. Identify Specific Places to Cache
- 19.6. Compression and Minification of HTML, CSS, and JavaScript
- 19.7. Use Upstream Caching or a Content Delivery Network
20. Asynchronous Task Queues
- 20.1. Do We Need a Task Queue?
- 20.2. Choosing Task Queue Software
- 20.3. Best Practices for Task Queues
21. Security
- 21.1. Know Django's Security Features
- 21.2. Turn Off DEBUG Mode in Production
- 21.3. Keep Your Secret Keys Secret
- 21.4. HTTPS Everywhere
- 21.5. Use Allowed Hosts Validation
- 21.6. Always Use CSRF Protection With HTTP Forms That Modify Data
- 21.7. Obfuscate Primary Keys with UUIDs
22. Logging
- 22.1. When to Use Each Log Level
- 22.2. Log Tracebacks When Catching Exceptions
- 22.3. One Logger Per Module That Uses Logging
- 22.4. Log Locally to Rotating Files
- 22.5. Log settings files
23. Signals: Use Cases and Avoidance Techniques
- 23.1. When to Use and Avoid Signals
- 23.2. Signal Avoidance Techniques
24. Utilities
- 24.1. Create a Core App for Your Utilities
- 24.2. Optimize Apps with Utility Modules
  - 24.2.1. Trimming Models
- 24.3. Django's Own Swiss Army Knife
- 24.4. Exceptions
- 24.5. Serializers and Deserializers
  - 24.5.1. django.core.serializers.json.DjangoJSONEncoder
25. Deployment:Platforms as a Service
- 25.1. Automate All the Things!
26. Deploying Django Projects
- 26.1. Single-Server for Small Projects
  - 26.1.1. Example: Quick Ubuntu + Gunicorn Setup
- 26.2. Multi-Server for Medium to Large Projects
  - 26.2.1. Advanced Multi-Server Setup
- 26.3. WSGI Application Servers
- 26.4. Automated, Repeatable Deployments
27. Continuous Integration
- 27.1. Principles of Continuous Integration
  - 27.1.1. Write Lots of Tests!
  - 27.1.2. Keeping the Build Fast
- 27.2. Tools for Continuously Integrating Your Project
  - 27.2.1. Tox
  - 27.2.2. Jenkins
- 27.3. Continuous Integration as a Service
  - 27.3.1. Code Coverage as a Service
28. Debugging
- 28.1. Debugging in Development
- 28.2. Debugging Production Systems
- 28.3. Feature Flags
  - 28.3.1. Feature Flag Packages
  - 28.3.2. Unit Testing Code Affected by Feature Flags
29. Internationalization and Localization
- 29.1. Define Python Source Code Encodings
- 29.2. Wrap Content Strings with Translation Functions
  - 29.2.1. Convention: Use the Underscore Alias to Save Typing
- 29.3. Don't Interpolate Words in Sentences
- 29.4. Unicode Tricks
- 29.5. Browser Page Layout
30. Security Settings Reference
- 30.1. Email SSL
- 30.2. SESSION SERIALIZER
- 30.3. SECURE PROXY SSL HEADER
31. Some Useful Packages
- 31.1. Core
- 31.2. Asynchronous
- 31.3. Deployment
- 31.4. Forms
- 31.5. Logging
- 31.6. Project Templates
- 31.7. REST APIs
- 31.8. Testing
- 31.9. Views
- 31.10. Feature Flag
32. Reference

django學習筆記
隨筆亂記，陸續增加中

值得閱讀的一些書或文章about CS

Dec 03, 2015 in computer-science

突然想到可以PO一些這種東西
因為是突然
所以東西還很少
未來有看到好文章或書的話會陸續增加
Continue reading

PyCharm import django project

Dec 03, 2015 in python

PyCharm > Preferences > Project > Project interpreter
choose the python interpreter which contains django

PyCharm > Preferences > Languages & Frameworks > Django
check the Enable Django Support
Django project root: project root path
Settings: project settings.py path
Manage script: manage.py

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pip指令筆記

Dec 03, 2015 in python

python 3rd library通常會撞到：python_path/lib/python3.4/site-packages

以安裝ipython為例

#安裝/反安裝package
pip install ipython
pip uninstall ipython
#找出ipython安裝在哪
pip show --files ipython
#更新package
pip install --upgrade ipython
#列出哪些package需要更新
pip list --outdated

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pyenv-virtualenv指令筆記

Dec 03, 2015 in python

Mac下安裝

1	brew install pyenv-virtualenv

指令

#新增一個以python3.4為底的virtual env在/usr/local/opt/pyenv/versions
pyenv virtualenv 3.4 my-virtual-env-3.4
#移除
pyenv uninstall my-virtual-env﹣3.4

其他請參照pyenv指令筆記

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pyenv指令筆記

Dec 03, 2015 in python

MAC底下安裝

記得先裝xcode command line tools
pyenv會裝到/usr/local/opt/pyenv

1	brew install pyenv

修改bash_profile加上

~/.bash_profile

1	eval "$(pyenv init -)"

developer在Mac上需要安裝的工具筆記

Dec 03, 2015 in mac

筆記以下目前mac有裝的app
developer取向
Continue reading

cwza's blog

Remove Python pyc File

Table of Contents

django學習筆記

Table of Contents

值得閱讀的一些書或文章about CS

PyCharm import django project

pip指令筆記

pyenv-virtualenv指令筆記

Mac下安裝

指令

pyenv指令筆記

MAC底下安裝

developer在Mac上需要安裝的工具筆記

Cwza

Hello everyone.
I’m cwza.
Welcome to my blog.

Software Engineer

Taiwan/Taipei

Table of Contents

Table of Contents

Mac下安裝

指令

MAC底下安裝

Cwza

Hello everyone. I’m cwza. Welcome to my blog.

Software Engineer

Taiwan/Taipei

Hello everyone.
I’m cwza.
Welcome to my blog.