python报错汇总

@高效码农  June 25, 2019

一、can only concatenate str (not "Tag") to str

报错信息:

Exception has occurred: TypeError
can only concatenate str (not "Tag") to str
  File "F:\python_workspace\customs\extract.py", line 140, in containerInfo
    item['\'' + titles[j] + '\''] = contents[i]
  File "F:\python_workspace\customs\extract.py", line 59, in parseWeb
    container_1_item = Extract.containerInfo(str(items[5]), str(titles[5]), myDb, url_id, county)
  File "F:\python_workspace\customs\detail.py", line 78, in openTab
    tarGetData = Extract.parseWeb(page, url_id)
  File "F:\python_workspace\customs\detail.py", line 40, in callUpBrowser
    self.openTab(driver, tarGetData)
  File "F:\python_workspace\customs\detail.py", line 83, in <module>
    detail.callUpBrowser()

解决方案
二维数组的KEY中含有html标签

二、Value 'item_total.append' is unsubscriptable

报错信息:

item_total.append[item]
-------------------------------
item_total: list
Value 'item_total.append' is unsubscriptablepylint(unsubscriptable-object)

解决方案
item_total.append[item]改为item_total.append(item)

三、can only concatenate str (not "NoneType") to str

报错信息:

Exception has occurred: TypeError
can only concatenate str (not "NoneType") to str
  File "F:\python_workspace\customs\extract.py", line 150, in containerInfo
    item['\'' + titles[j].string + '\''] = contents[i].string
  File "F:\python_workspace\customs\extract.py", line 66, in parseWeb
    Extract.containerInfo(str(items[7]), str(titles[7]), myDb, url_id, county, 3)
  File "F:\python_workspace\customs\detail.py", line 78, in openTab
    tarGetData = Extract.parseWeb(page, url_id)
  File "F:\python_workspace\customs\detail.py", line 40, in callUpBrowser
    self.openTab(driver, tarGetData)
  File "F:\python_workspace\customs\detail.py", line 83, in <module>
    detail.callUpBrowser()

解决方案
对处理的字符串做判断

 if string is None

四、Unable to add the Win32_PerfRawData_PerfDisk_PhysicalDisk enum

报错信息:

[6668:6348:0625/111147.071:ERROR:wmi_refresher.cc(150)] Unable to add the Win32_PerfRawData_PerfDisk_PhysicalDisk enum.

解决方案

加大time.sleep(5) 时间到一个合适的值

五、FutureWarning: Using an implicitly registered datetime converter for a matplotlib plotting method. The converter was registered by pandas on import. Future versions of pandas will require you to explicitly register matplotlib converters.

报错信息:

FutureWarning: Using an implicitly registered datetime converter for a matplotlib plotting method. The converter was registered by pandas on import. Future versions of pandas will require you to explicitly register matplotlib converters.

To register the converters:
        >>> from pandas.plotting import register_matplotlib_converters
        >>> register_matplotlib_converters()
  warnings.warn(msg, FutureWarning)

解决方案

添加报错信息中的代码

from pandas.plotting import register_matplotlib_converters
register_matplotlib_converters()

六:Unable to open 'parsers.pyx': Unable to read file

报错信息:

Unable to open 'parsers.pyx': Unable to read file (Error: File not found (f:\python_workspace\pandas-example\pandas\_libs\parsers.pyx)).

解决方案

**文件路径错误**

七:RuntimeError: already started

报错信息:

 raise RuntimeError('already started')
 RuntimeError: already started

解决方案

vscode的问题,在终端或者命令行执行即可



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