铃木uy125t踏板摩托车官网报价

Python作为胶水语言,它几乎是无所不能的,但个人一直觉得在GUI开发方面,python可以算作是短板了,为什么?因为性能…python的性能问题,往往出现在其他编程语言对其的鄙夷中。但不管如何python在GUI编程上,也是有大量优秀模块的。

1 . tkinter

铃木uy125t踏板摩托车官网报价

wxpython是一个Python对于wxWidgets(这是用 C 编写)包装后的产物,算是个流行的跨平台GUI工具包。wxpython的优势在于运行速度较快,但编写起来较为复杂,而且界面美化效果较差…当然有第三方开发的wxFormBuiler拖拽编辑器,能替代部分的底层代码实现。不在乎外观但追求速度的朋友,可以考虑它。

4 . PYQT5

Qt是一套跨平台的C 库,不论是C 、Java还是Python,都可以通过它来实现GUI界面的开发。PyQt5是Qt v5的一套全面的Python绑定。它实现为超过35个扩展模块,上千个实现函数。使Python能够在所有支持的平台(包括iOS和Android)上用作C 的替代开发语言。如果你对GUI编程非常感谢兴趣,可以用心学学这个模块,但如果你只是想快速的实现一些GUI的功能,我更推荐大家学tkinter模块,为什么?

tkinter作为python默认自带的模块库,无需单独安装tkinter相比于wxpython与pyqt在制作小工具的方面,更为高效tkinter在网上存在大量的快速入门教程

tkinter实战

为了证明tkinter的方便与高效,今天来编写一个将图片转化为素描画的小工具,先给大家看看实现效果:

铃木uy125t踏板摩托车官网报价

避坑指南

1 . tktiner添加图片

大家看到,tktiner中附带了一个我的微信二维码,这里只是为了演示tkinter添加图片,没有丝毫推广的味道,哈哈…这里要注意下,tktiner在添加图片时,PhotoImage(file=’tmp.gif’)要求图片必须是.gif结尾的图片,否则就会报错:

_tkinter.TclError: couldn’t recognize data in image file

2 . 关于base64

大家看到我没有加载图片,而是通过base64提前转码好二进制文件后,再进行导入,这样我们打包的exe在使用时,就无需附带一个图片文件了!

1import?base6423with?open(‘清风Python.gif’,’rb’)?as?f:4????data?=?f.read()5img?=?base64.b64encode(data)6print(img)

tkinter打包

既然我们开发的是GUI工具,必须得打包成exe才更好玩啊!但是昨天有朋友反馈,打包的地方说的太粗,光看动图不知道该如何操作。那么今天我简单说下。

首先python的打包工具很多,但我一直以来比较喜欢使用pyinstaller,当然大家也可以去尝试cx_freeze、Py2exe等。

首先,我们需要安装pyinstaller:使用pip install pyinstaller。

安装完成,会在python程序根目录的Scripts文件夹下生成pyinstaller.exe。

铃木uy125t踏板摩托车官网报价

如果在软件安装时,没有将Scripts添加至系统环境变量,需要手动添加到环境变量的PATH中,否则无法在cmd下使用该命令。

以往很正常的打包,有位朋友反馈使用相同的代码打包失败:

铃木uy125t踏板摩托车官网报价

pyinstaller报错

找了半天才发现从python 3.6开始,enum34库不再与标准库兼容。该库也是不必要的,因此只需卸载它即可。pip uninstall enum34再次执行打包操作即可。

铃木uy125t踏板摩托车官网报价

总体代码

最后附上工具的整体代码,可供大家参考:

1#?-*-?coding:?utf-8?-*- 2#?@Author???:?王翔 3#?@JianShu??:?清风Python 4#?@Date?????:?2019/11/14?01:18 5#?@Software?:?PyCharm 6#?@version ?:Python 3.7.3 7#?@File?????:?ChangeImage.py 8 910from?tkinter.messagebox?import?*11from?tkinter.filedialog?import?*12from?tkinter?import?*13import?base6414from?PIL?import?Image,?ImageFilter,?ImageOps15import?os1617img_bs64?=?b’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iZzkouUji2UlagDCKW1Wu7nAsmWwtnWQDDqSl5DQozyrSsleXKcZ1tUuQ7iLXZRe0k7FxZNXxjMIqXxyFqPOaZXRTcOMlOcpzA3DAAuVzVSi4l0ebe5iApHNMB4yqfDVIy37CLnfRW2LoAlRBDcgykT/EqOZEuHgLyk66/L8G5j fYQ9AETDWUHzsJ8AaihjQINSAmO4d9noPWcFVIyUascxZAJAkBES5qIimOxN668exCt ByKJg5IxdPJFUGEFstWanOlfj52ReWgZJbYKTkzsBM8CaTk4HS2MlmpFoFhWypmVomaztHwcVqgXJEhiMHtejErYaKvlLXO5y17 MpjDLOYxk7nMZj4zmtOs5jWzuc1ufjOc4yznOSMpIAA7’181920def?dodge(a,?b,?alpha):21????return?min(int(a?*?255?/?(256?-?b?*?alpha)),?255)222324def?draw(dir_info,?blur=25,?alpha=1.0):25????base_dir?=?os.path.dirname(os.path.abspath(__file__))26????save_file_name?=?os.path.join(base_dir,?’final.png’)27????img?=?Image.open(dir_info)28????img1?=?img.convert(‘L’)??#?图片转换灰色29????img2?=?img1.copy()30????img2?=?ImageOps.invert(img2)31????for?i?in?range(blur):32????????img2?=?img2.filter(ImageFilter.BLUR)33????width,?height?=?img1.size34????for?x?in?range(width):35????????for?y?in?range(height):36????????????a?=?img1.getpixel((x,?y))37????????????b?=?img2.getpixel((x,?y))38????????img1.putpixel((x,?y),?dodge(a,?b,?alpha))39????img1.save(save_file_name)40????img1.show()414243class?LoginPage(object):44????def?__init__(self,?master=None):45????????self.root?=?master46????????self.root.geometry(‘%dx%d’?%?(450,?250))47????????self.page?=?Frame(self.root)48????????self.Dir?=?StringVar()49????????self.Port?=?StringVar()50????????self.path?=?StringVar()51????????self.dir_info?=?StringVar()52????????self.create_page()5354????def?create_page(self):55????????self.page.grid()56????????with?open(‘tmp.gif’,?’wb ‘)?as?f:57????????????f.write(base64.b64decode(img_bs64))58????????self.photo?=?PhotoImage(file=’tmp.gif’)59????????os.remove(‘tmp.gif’)60????????Label(self.page,?text=”’6162????????********:?Python63????????作者??:?***?64????????时间??:201965????????工具??:Python 3. 7. 3 Tkinter ???????66????????详情??:?图片转素描画工具”’,?justify=LEFT).grid(row=0,?column=0,?columnspan=2,?rowspan=1,?stick=NW)67????????Label(self.page,?text=”图片路径”).grid(row=3,?column=0,?sticky=W,?pady=5)68????????self.dir_info?=?Entry(self.page,?textvariable=self.path)69????????self.dir_info.grid(row=3,?column=1,?columnspan=1,?padx=20)70????????Button(self.root,?text=”选择路径”,?command=lambda:?self.select_path()).grid(row=0,?column=0,?sticky=S,?padx=20,71????????????????????????????????????????????????????????????????????????????????pady=5)72????????Label(self.page,?image=self.photo).grid(row=0,?column=2)73????????Button(self.page,?text=’转换’,?command=self.login_check,?width=10).grid(row=3,?column=2,?padx=10,?pady=5)7475????def?select_path(self):76????????path_?=?askopenfilename(filetypes=[(“file”,?”*.*”)])77????????self.path.set(path_)7879????def?login_check(self):80????????img_dir?=?self.dir_info.get()81????????if?img_dir?==?””:82????????????showinfo(title=’错误’,?massage=’路径错误’)83????????else:84????????????draw(img_dir)858687root?=?Tk()88root.title(‘素描画转化工具’)89LoginPage(root)90root.mainloop()

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