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Commit 54069db

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update dotdict
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11 files changed

+396
-23
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11 files changed

+396
-23
lines changed

‎README.md

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@@ -247,6 +247,12 @@ python的强大之处有很大的一方面在于它有各种各样非常强大
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## [delegator](content/delegator.md)
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## [graphic-verification-code](content/graphic-verification-code.md)
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## [bunch](content/bunch.md)
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## [halo](content/halo.md)
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## [tools](content/tools.md)
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## [Other_thing](content/other_thing.md)

‎code/A_dot_accessible_dictionary.py

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# -*- coding: utf-8 -*-
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class DotDict(dict):
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def __init__(self):
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super(DotDict, self).__init__()
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self.__dict__ = self
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if __name__ == '__main__':
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a = DotDict()
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a['name'] = 'windard'
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a.year = 24
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print a

‎code/bunch.md

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## bunch
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将字典转换为类对象使用,可以使用点来取得字典的值
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其实自己实现的话
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```
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# -*- coding: utf-8 -*-
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class DotDict(dict):
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def __init__(self):
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super(DotDict, self).__init__()
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self.__dict__ = self
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if __name__ == '__main__':
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a = DotDict()
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a['name'] = 'windard'
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a.year = 24
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print a
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```
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或者这样,这也是 `dotdict` 这个库的全部内容
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```
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# -*- coding: utf-8 -*-
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class DotDict(dict):
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__setattr__ = dict.__setitem__
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__getattr__ = dict.__getitem__
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__delattr__ = dict.__delitem__
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if __name__ == '__main__':
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a = DotDict()
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a['name'] = 'windard'
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a.year = 24
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print a
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print a.name
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```
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而 bunch 的实现是这样的
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```
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# -*- coding: utf-8 -*-
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class DotDict(dict):
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def __getattr__(self, item):
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try:
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return self[item]
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except KeyError:
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raise AttributeError(item)
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def __setattr__(self, key, value):
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try:
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self[key] = value
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except:
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raise AttributeError(key)
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def __delattr__(self, item):
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try:
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del self[item]
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except:
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raise AttributeError(item)
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if __name__ == '__main__':
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a = DotDict()
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a['name'] = 'windard'
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a.year = 24
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print a
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print a.name
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```
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基本上是一个思路,然后再加了一些捕获异常和类型转换,更容易的转换为其他的数据结构。
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‎code/halo_demo.py

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# coding=utf-8
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from halo import Halo
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spinner = Halo(text='Loading', spinner='dots')
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spinner.start()
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# Run time consuming work here
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# You can also change properties for spinner as and when you want
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spinner.stop()

‎code/pil_captcha.py

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# coding=utf-8
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try:
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import Image, ImageDraw, ImageFont, ImageFilter
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except ImportError:
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from PIL import Image, ImageDraw, ImageFont, ImageFilter
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import random
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# 随机字母:
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def rndChar():
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return chr(random.randint(65, 90))
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# 随机颜色1:
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def rndColor():
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return (random.randint(64, 255), random.randint(64, 255), random.randint(64, 255))
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# 随机颜色2:
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def rndColor2():
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return (random.randint(32, 127), random.randint(32, 127), random.randint(32, 127))
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if __name__ == '__main__':
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# 240 x 60:
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width = 60 * 4
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height = 60
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image = Image.new('RGB', (width, height), (255, 255, 255))
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# 创建Font对象:
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font = ImageFont.truetype('Arial.ttf', 36)
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# 创建Draw对象:
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draw = ImageDraw.Draw(image)
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# 填充每个像素:
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for x in range(width):
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for y in range(height):
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draw.point((x, y), fill=rndColor())
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# 输出文字:
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for t in range(4):
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draw.text((60 * t + 10, 10), rndChar(), font=font, fill=rndColor2())
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# 模糊:
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image = image.filter(ImageFilter.BLUR)
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image.show()
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image.save('code.jpg', 'jpeg')

‎code/pil_convert.py

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img.save(des, "JPEG", quality=80, optimize=True, progressive=True)
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except IOError:
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ImageFile.MAXBLOCK = img.size[0] * img.size[1]
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img.save(des, "JPEG", quality=80, optimize=True, progressive=True)
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img.save(des, "JPEG", quality=80, optimize=True, progressive=True)

‎code/verification.py

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# coding=utf-8
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import gvcode
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img, code = gvcode.generate((240, 60))
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print code
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img.show()
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img.save('verification.jpg')

‎content/PIL.md

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@@ -62,48 +62,60 @@ contrast_pic.save("../images/test8.jpg")
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遇到了问题,还有其他的在安装opencv的时候也遇到了一个问题。
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`ImportError: The _imagingft C module is not installed`和`error: Unable to find vcvarsall.bat`,算了。不然就可以用Python写验证码了。
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`ImportError: The _imagingft C module is not installed` 和 `error: Unable to find vcvarsall.bat`,算了。不然就可以用Python写验证码了。
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[在Python中用PIL做验证码](http://www.zouyesheng.com/captcha.html)
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```python
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import Image, ImageDraw, ImageFont, ImageFilter
70+
# coding=utf-8
71+
try:
72+
import Image, ImageDraw, ImageFont, ImageFilter
73+
except ImportError:
74+
from PIL import Image, ImageDraw, ImageFont, ImageFilter
7275
import random
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# 随机字母:
7579
def rndChar():
7680
return chr(random.randint(65, 90))
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# 随机颜色1:
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def rndColor():
8085
return (random.randint(64, 255), random.randint(64, 255), random.randint(64, 255))
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# 随机颜色2:
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def rndColor2():
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return (random.randint(32, 127), random.randint(32, 127), random.randint(32, 127))
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# 240 x 60:
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width = 60 * 4
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height = 60
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image = Image.new('RGB', (width, height), (255, 255, 255))
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# 创建Font对象:
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font = ImageFont.truetype('Arial.ttf', 36)
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# 创建Draw对象:
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draw = ImageDraw.Draw(image)
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# 填充每个像素:
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for x in range(width):
96-
for y in range(height):
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draw.point((x, y), fill=rndColor())
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# 输出文字:
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for t in range(4):
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draw.text((60 * t + 10, 10), rndChar(), font=font, fill=rndColor2())
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# 模糊:
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image = image.filter(ImageFilter.BLUR)
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image.show()
104-
image.save('code.jpg', 'jpeg');
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if __name__ == '__main__':
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# 240 x 60:
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width = 60 * 4
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height = 60
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image = Image.new('RGB', (width, height), (255, 255, 255))
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# 创建Font对象:
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font = ImageFont.truetype('Arial.ttf', 36)
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# 创建Draw对象:
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draw = ImageDraw.Draw(image)
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# 填充每个像素:
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for x in range(width):
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for y in range(height):
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draw.point((x, y), fill=rndColor())
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# 输出文字:
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for t in range(4):
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draw.text((60 * t + 10, 10), rndChar(), font=font, fill=rndColor2())
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# 模糊:
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image = image.filter(ImageFilter.BLUR)
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image.show()
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image.save('code.jpg', 'jpeg')
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105115
```
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或者使用 `graphic-verification-code`
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#### imageFilter
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图片模糊效果。

‎content/graphic-verification-code.md

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## graphic-verification-code
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国人写的图形验证码库,使用 PIL ,还算好用,只有两个函数
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- generate 生成图像和验证码,图像是 PIL Image 实例
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- base64 生成图像和验证码,图形是 Base64 编码过的
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```
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def generate(self, size=(120, 30), chars=None, format='PNG', mode='RGB', bg_color=(255, 255, 255), fg_color=(0, 0, 255), font_size=18, font_file=None, length=4, draw_lines=True, line_range=(1, 2), draw_points=True, point_chance=2):
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"""
12+
@param size: 图片的大小,格式(宽,高),默认为(120, 30)
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@param chars: 允许的字符集合,格式字符串
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@param format: 图片保存的格式,默认为 PNG,可选的为 GIF,JPEG,TIFF,PNG
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@param mode: 图片模式,默认为 RGB
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@param bg_color: 背景颜色,默认为白色
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@param fg_color: 前景色,验证码字符颜色,默认为蓝色 #0000FF
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@param font_size: 验证码字体大小
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@param font_file: 验证码字体,默认为 None
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@param length: 验证码字符个数
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@param draw_lines: 是否划干扰线
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@param line_range: 干扰线的条数范围,格式元组,默认为 (1, 2),只有 draw_lines 为 True 时有效
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@param draw_points: 是否画干扰点
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@param point_chance: 干扰点出现的概率,大小范围 [0, 100],只有 draw_points 为 True 时有效
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@return: [0]: PIL Image 实例
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@return: [1]: 验证码图片中的字符串
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"""
28+
```
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使用起来非常的简单
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```
33+
# coding=utf-8
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import gvcode
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img, code = gvcode.generate()
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print code
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img.show()
42+
img.save('verification.jpg')
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```
45+
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也可以直接使用 PIL 生成验证码
47+
48+
```
49+
# coding=utf-8
50+
try:
51+
import Image, ImageDraw, ImageFont, ImageFilter
52+
except ImportError:
53+
from PIL import Image, ImageDraw, ImageFont, ImageFilter
54+
import random
55+
56+
57+
# 随机字母:
58+
def rndChar():
59+
return chr(random.randint(65, 90))
60+
61+
62+
# 随机颜色1:
63+
def rndColor():
64+
return (random.randint(64, 255), random.randint(64, 255), random.randint(64, 255))
65+
66+
67+
# 随机颜色2:
68+
def rndColor2():
69+
return (random.randint(32, 127), random.randint(32, 127), random.randint(32, 127))
70+
71+
72+
if __name__ == '__main__':
73+
# 240 x 60:
74+
width = 60 * 4
75+
height = 60
76+
image = Image.new('RGB', (width, height), (255, 255, 255))
77+
# 创建Font对象:
78+
font = ImageFont.truetype('Arial.ttf', 36)
79+
# 创建Draw对象:
80+
draw = ImageDraw.Draw(image)
81+
# 填充每个像素:
82+
for x in range(width):
83+
for y in range(height):
84+
draw.point((x, y), fill=rndColor())
85+
# 输出文字:
86+
for t in range(4):
87+
draw.text((60 * t + 10, 10), rndChar(), font=font, fill=rndColor2())
88+
89+
# 模糊:
90+
image = image.filter(ImageFilter.BLUR)
91+
image.show()
92+
image.save('code.jpg', 'jpeg')
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```

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