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Regex Email validation

...ht, fail to catch at least two invalid formats: "Abc.@example.com" , "Abc..123@example.com" – sean717 Aug 22 '12 at 5:22 ...
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Scheduling recurring task in Android

...k stackoverflow.com/questions/27872016/… – dowjones123 Jan 10 '15 at 2:07 For simple things - like checking state ev...
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Build an ASCII chart of the most commonly used words in a given text [closed]

... 123 votes LabVIEW 51 nodes, 5 structures, 10 diagrams Teaching the elephant to tap-d...
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How do I list all files of a directory?

... os.listdir() will get you everything that's in a directory - files and directories. If you want just files, you could either filter this down using os.path: from os import listdir from os.path import isfile, join onlyfiles ...
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How to list only top level directories in Python?

... Filter the result using os.path.isdir() (and use os.path.join() to get the real path): >>> [ name for name in os.listdir(thedir) if os.path.isdir(os.path.join(thedir, name)) ] ['ctypes', 'distutils', 'encodings', 'lib-tk', 'config', 'idlel...
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How do I compare version numbers in Python?

...3.a4"), version.Version) True >>> isinstance(version.parse("1.3.xy123"), version.LegacyVersion) True >>> version.Version("1.3.xy123") Traceback (most recent call last): ... packaging.version.InvalidVersion: Invalid version: '1.3.xy123' packaging.version.parse is a third-party uti...
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Getting a list of all subdirectories in the current directory

...ories, or every directory right down the tree? Either way, you could use os.walk to do this: os.walk(directory) will yield a tuple for each subdirectory. Ths first entry in the 3-tuple is a directory name, so [x[0] for x in os.walk(directory)] should give you all of the subdirectories, recur...
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Difference between os.getenv and os.environ.get

... One difference observed (Python27): os.environ raises an exception if the environmental variable does not exist. os.getenv does not raise an exception, but returns None share |...
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How to detect the current OS from Gradle

... Ant's existing structure: import org.apache.tools.ant.taskdefs.condition.Os task checkWin() << { if (Os.isFamily(Os.FAMILY_WINDOWS)) { println "*** Windows " } } I found this in the following Gradle branch, and it seems to work nicely. gradle/gradle-core/branches/RB-0.3/bu...
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php 获取操作系统、浏览器版本信息(持续更新) - 更多技术 - 清泛网 - 专...

...版本,以及用户使用何种浏览器等信息,本文主要提供getOS、getBrowser、getBrowserVer三个方法,对网上各方法进行测试汇总整理,持续更新希望能成为最佳实现,欢迎大家多提意见。一、获取操作系统信息: /** * 获取os信息 * ...