scott-freeze 0.1

保持 requirements.in 使用未固定或松散固定的需求，并让scott将它们冻结成 requirements.txt 以进行测试和部署

$ cat requirements.in
flask>0.9

$ scott-freeze requirements.in > requirements.txt

$ cat requirements.txt
# Generated file. Please do not edit manually
#
# `requirements.in` contains direct dependencies (and may be >version instead
# of ==version) This file is a list of dependencies and _their_ dependencies,
# completely frozen.  To generate this file, use scott-freeze
#
# Example
#     $ scott-freeze requirements.in > requirements.txt
#
Flask==0.10.1
itsdangerous==0.24
Jinja2==2.7.3
MarkupSafe==0.23
Werkzeug==0.9.6