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python 2.7 : type object "ElementTree" has no attribute "register_namespace"

使用此python2.7.3(或2.7.0)代码,我想更改属性“android:versionCode='2'”的值,它具有命名空间前缀“android”:#!/usr/bin/pythonfromxml.etree.ElementTreeimportElementTree,dumpimportsys,os#Problemhere:ElementTree.register_namespace("android","http://schemas.android.com/apk/res/android")tree=ElementTree()tree.parse("AndroidManife

Python测试Average Calculator返回错误 'list' object has no attribute 'len'

这个问题在这里已经有了答案:HowdoIgetthenumberofelementsinalist(lengthofalist)inPython?(12个答案)HowcanIforcedivisiontobefloatingpoint?Divisionkeepsroundingdownto0?(11个答案)关闭上个月。嘿,这是一个向我的一些同学展示Python和编码介绍的演示。下面的代码应该能够获取像[0,1]这样的列表,如果使用average函数运行,将返回0.5。当使用列表运行时,下面的函数返回错误'list'objecthasnoattribute'len'。在不删除len()函

python - pandas - 具有非数值的 pivot_table? (数据错误 : No numeric types to aggregate)

我正在尝试对包含字符串作为结果的表进行数据透视。importpandasaspddf1=pd.DataFrame({'index':range(8),'variable1':["A","A","B","B","A","B","B","A"],'variable2':["a","b","a","b","a","b","a","b"],'variable3':["x","x","x","y","y","y","x","y"],'result':["on","off","off","on","on","off","off","on"]})df1.pivot_table(values='res

python - 如何解决 ImportError : No module named 'dbus' ?

我在我的ubuntu上安装了anaconda4,我的Python上有这些模块:dbus-python(1.2.4)gi(1.2)pydbus(0.2)QtAwesome(0.3.2)qtconsole(4.2.0)QtPy(1.0)sip(4.18)我尝试安装dbus-python(1.2.4)和pydbus(0.2),但是,它们都不起作用!在python3.5.1中测试一个简单的程序后,出现错误:importdbussystem_bus=dbus.SystemBus()ImportError:Nomodulenamed'dbus'当我在Python2.7.11和3.5.1中使用pyd

python - 属性错误 : 'unicode' object has no attribute 'values' when parsing JSON dictionary values

我有以下JSON字典:{u'period':16,u'formationName':u'442',u'formationId':2,u'formationSlots':[1,2,3,4,5,6,7,8,9,10,11,0,0,0,0,0,0,0],u'jerseyNumbers':[1,20,3,15,17,5,19,6,18,25,10,2,4,12,16,22,24,34],u'playerIds':[23122,38772,24148,39935,29798,75177,3860,8505,26013,3807,34693,18181,4145,23446,8327,107395

python - gevent 库 : "Import Error: no module named greenlet"

大家好,我下载了一个需要geventpython库的脚本,每次运行该脚本时,它都会显示:File"shodan.py",line7,infromgeventimportmonkeyFile"C:\Python27\lib\site-packages\gevent\__init__.py",line48,infromgevent.greenletimportGreenlet,joinall,killallFile"C:\Python27\lib\site-packages\gevent\greenlet.py",line6,infromgevent.hubimportgreenlet,g

python - Py 安装程序 "ImportError: No module named Pyinstaller"

这是我运行pythonconfigure.py时生成的代码。dan@Q430-Q530:~/pyinstaller-2.0/PyInstaller$pythonconfigure.pyTraceback(mostrecentcalllast):File"configure.py",line28,infromPyInstallerimportHOMEPATH,PLATFORMImportError:NomodulenamedPyInstaller因此,目前,由于缺少一个名为...PyInstaller的模块,我什至无法运行PyInstaller。这是PyInstaller2.0,您可以找

python - 安装rpy2时遇到错误: Tried to guess R's HOME but no R command in the PATH

我在这里和其他地方看到了很多关于此错误的帖子,但所提议的解决方案似乎都不相关。我在Python2.7.9,我有anRexecutableinmypath,我正在尝试将它安装在RHEL服务器上,而不是在Windows上。这是我看到的具体错误。有谁知道是什么原因造成的或如何解决?谢谢!$pipinstallrpy2Downloading/unpackingrpy2Downloadingrpy2-2.5.6.tar.gz(165kB):165kBdownloadedRunningsetup.py(path:/tmp/pip_build_my520/rpy2/setup.py)egg_info

python - 尝试在 Python 中使用 GSM 调制解调器调用电话时收到 "NO CARRIER"错误

我想使用我的GSM调制解调器调用电话。所以我写了下面的程序:importtimeimportserialrecipient="+98xxxxxxxxxx"phone=serial.Serial("COM10",115200,timeout=5)try:time.sleep(0.5)phone.write(b'ATZ\r')time.sleep(1)phone.write(b'ATD"'+recipient.encode()+b'"\r')while(1):print(phone.readline())time.sleep(0.5)finally:phone.close()但是当我运行它

python - 导入错误 : No module named enum on python 2. 7

我正在使用Python2.7运行代码。我得到“ImportError:没有名为enum的模块”。我用“pipinstallenum”安装了枚举,但错误不断出现。我该怎么办?? 最佳答案 你想要backport:pipinstallenum34不幸的是,PyPI上名为enum的发行版是另外一回事。 关于python-导入错误:Nomodulenamedenumonpython2.7,我们在StackOverflow上找到一个类似的问题: https://stac