python - 如何从此 URL 获取氨基酸序列？

Question

我想使用 python 和 Selenium 从下面的 url 获取氨基酸序列，但无法成功。 http://flybase.org/download/sequence/FBgn0003719/FBpp

我试过你的 Beautiful Soup 和 Selenium。

from selenium import webdriver

driver = webdriver.Chrome()

driver.get('http://flybase.org/download/sequence/FBgn0003719/FBpp')

iframe = driver.find_element_by_class_name('scroller')

notification_element = driver.find_element_by_class_name('fastaSeq')

print(notification_element)

Message: no such element: Unable to locate element

Answer 1

您可以使用 selenium 加载页面并使用 BeautifulSoup 访问序列:

from selenium import webdriver
from bs4 import BeautifulSoup as soup
d = webdriver.Chrome('/path/to/chromedriver')
d.get('http://flybase.org/download/sequence/FBgn0003719/FBpp')
sequence = soup(d.page_source, 'html.parser').find('div', {'class':'fastaSeq'}).text

输出:

'MKGMRLMPMK MKAKLVVLSV GALWMMMFFL VDYAEGRRLS QLPESECDFD FKEQPEDFFG ILDSSLVPPK EPKDDIYQLK TTRQHSGRRR KQSHKSQNKA ALRLPPPFLW TDDAVDVLQH SHSPTLNGQP IQRRRRAVTV RKERTWDYGV IPYEIDTIFS GAHKALFKQA MRHWENFTCI KFVERDPNLH ANYIYFTVKN CGCCSFLGKN GNGRQPISIG RNCEKFGIII HELGHTIGFH HEHARGDRDK HIVINKGNIM RGQEYNFDVL SPEEVDLPLL PYDLNSIMHY AKNSFSKSPY LDTITPIGIP PGTHLELGQR KRLSRGDIVQ ANLLYKCASC GRTYQQNSGH IVSPHFIYSG NGVLSEFEGS GDAGEDPSAE SEFDASLTNC EWRITATNGE KVILHLQQLH LMSSDDCTQD YLEIRDGYWH KSPLVRRICG NVSGEVITTQ TSRMLLNYVN RNAAKGYRGF KARFEVVCGG DLKLTKDQSI DSPNYPMDYM PDKECVWRIT APDNHQVALK FQSFELEKHD GCAYDFVEIR DGNHSDSRLI GRFCGDKLPP NIKTRSNQMY IRFVSDSSVQ KLGFSAALML DVDECKFTDH GCQHLCINTL GSYQCGCRAG YELQANGKTC EDACGGVVDA TKSNGSLYSP SYPDVYPNSK QCVWEVVAPP NHAVFLNFSH FDLEGTRFHY TKCNYDYLII YSKMRDNRLK KIGIYCGHEL PPVVNSEQSI LRLEFYSDRT VQRSGFVAKF VIDVDECSMN NGGCQHRCRN TFGSYQCSCR NGYTLAENGH NCTETRCKFE ITTSYGVLQS PNYPEDYPRN IYCYWHFQTV LGHRIQLTFH DFEVESHQEC IYDYVAIYDG RSENSSTLGI YCGGREPYAV IASTNEMFMV LATDAGLQRK GFKATFVSEC GGYLRATNHS QTFYSHPRYG SRPYKRNMYC DWRIQADPES SVKIRFLHFE IEYSERCDYD YLEITEEGYS MNTIHGRFCG KHKPPIIISN SDTLLLRFQT DESNSLRGFA ISFMAVDPPE DSVGEDFDAV TPFPGYLKSM YSSETGSDHL LPPSRLI'