在google scholar中循环列出25位缺少引用的作者

Question

我正在使用from scholarly import scholarly从谷歌学者那里获取教授列表中25位教授的引用次数。然而，有些作者没有引文。我如何能够循环并停止迭代。我已尝试使用以下代码：

for i in professorlist:
    if i in professorlist:
        a = scholarly.search_author(i)
author = next(search_query)
scholarly.pprint(scholarly.fill(author, sections=['counts']))
if i not in professorlist:
    print ("no citations")

但我得到了这个错误：

---------------------------------------------------------------------------
StopIteration                             Traceback (most recent call last)
<ipython-input-636-b3aa9d644e9f> in <module>
      2     if i in professorlist:
      3         a = scholarly.search_author(i)
----> 4 author = next(search_query)
      5 scholarly.pprint(scholarly.fill(author, sections=['counts']))
      6 if i not in professorlist:

StopIteration:

Answer 1

当您使用生成器时，您可以通过调用next方法获得项，就像您在提供的代码段中所做的那样；但是，如果在耗尽/空的生成器上调用此方法，则会出现StopIteration错误

您可以通过如下方式将其包装到try/except块中来管理它

try:
    author = next(search_query)
except StopIteration:
    print("Iterated over all authors")
else:
    # do something with your author
    pass

您还可以使用for循环迭代生成器；它将自动处理StopIteration错误，在生成器耗尽时退出

for author in search_query:
    # do something with your author
    pass