どのようにスパンを使用してPythonでスパンのテキストを取得するには？

Question

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      <span id="eventNameHeader">The Future of Medicine, Health Care and Biological Studies</span> 
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    <span id="smallerHeading">Conference</span> 
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    <span id="eventDate">16th to 17th October 2017</span> 
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    <span id="eventCountry">Rockville, Maryland, United States of America</span> 
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     <span id="smallerHeading">Website: </span> 
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    <span id="eventContactPerson"><span id="smallerHeading">Contact person: </span>Eduard David</span> 
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    <span id="eventDescription">We gladly invite you to attend the International Conference The Future of Medicine, Health Care and Biological Studies which will be held at Johns Hopkins University, just 20 miles away from Washington DC. </span> 
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    <span id="eventOrganiser"><span style="font-weight: bold; color: #696969;">Organized by: </span>Research Association for Interdisciplinary Studies (RAIS)</span>  <br><span id="eventDeadline"><span style="font-weight: bold; color: #696969;">Deadline for abstracts/proposals: </span>21st August 2017</span>  <br> 
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    Check the <a href="http://rais.education/the-future-of-medicine-health-care-and-biological-studies/" target="_blank">event website</a> for more details. 
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「スクリーニングを使用してPythonで上記のコードから医学、ヘルスケアと生物学の未来」のテキストを取得するには？

私は、このコード

response.css('div.eventInfoContainer table tbody tr td:nth-child(3) span::text').extract() 

を試みたが、O/P必要な情報が含まれていspan要素は（一意である必要があります）id属性を持っているように、この "[]"

Answer 1

ようになってこれで十分です：

text = response.css('span#eventNameHeader::text').extract_first() 

EDIT： XPATを使用して時間は、それは似ています：

text = response.xpath('//span[@id="eventNameHeader"]/text()').extract_first()