0
我有一个关于使用Python在for循环中从文本文件打印数据的问题。每当我尝试运行这个程序，它说“无法将字符串转换为浮点数：KAAA”（KAAA是元素[2]中的字符串元素）。我正在尝试使用制表符分隔符将数据从带有逗号分隔符的文本文件传输到文本文件。由于某种原因，这个程序工作正常，如果我拿走了字符串的第三列，但不是当我把它重新加入。有没有一种方法，我可以得到它，所以三列转移到一个文本文件以逗号分隔他们？这是来自数据的示例行。 “40.15869904 -89.33499908 KAAA”。制表符分隔符到逗号分隔符传输问题
cj = CookieJar()
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor)
opener.addheaders = [('User-agent','mr_anderson')]
keywords = map(''.join, product(ascii_lowercase, repeat=3))
keywords = ["k"+a+b+c for a,b,c in product(ascii_lowercase, repeat=3)]
start_time = time.time()
print("--- %s seconds ---" % (time.time() - start_time))
try:
a = 1
b = 1
List=[""]
data = np.loadtxt("airportcodelatlonidentonlyk.txt")
text_file_latlonair = open("latlontext.txt","a")
for element in data:
lat = str(element[0])
lon = str(element[1])
ident = str(element[2])
text_file_latlonair.write(str(lat)+','+str(lon)+','+str(ident))
text_file = open("nws_contourcurrenttemp_datatwo.txt","a")
for i in range (1,50):
i=1
i+=1
a+=1
b+=1
keywargs = str(keywords[a]).upper()
argument = 'http://w1.weather.gov/xml/current_obs/'+keywargs+'.rss'
page = 'http://w1.weather.gov/xml/current_obs/KBED.rss'
sourceCode = opener.open(page).read()
#print(sourceCode)
req = Request(argument)
try:
page_open = urlopen(req)
except:
None
else:
c=1
c+=1
sourceCode = opener.open(argument).read()
KBEDforecastraw = re.findall(r'and\s\d{1,2}\s\w.*?',str(sourceCode))
windraw = re.findall(r'at\s\d{1,2}\.\d{0,1}.*?',str(sourceCode))
pressureraw = re.findall(r'The pressure is\s\d{1,4}\.\d{0,1}\s\w\w.*?',str(sourceCode))
humidraw = re.findall(r'the humidity is\s\d{1,2}\%.*?',str(sourceCode))
try:
KBEDtemp = KBEDforecastraw[0]
KBED = str(KBEDtemp).strip("[and F]")
#text_file.write(KBEDtemp)
except:
None
else:
text_file.write(KBED+'\n')
#print(KBED)
#print(str(KBEDforecastraw)+' '+keywargs+str(windraw)+str(pressureraw)+str(humidraw))
except Exception, e:
print(str(e))
print("--- %s seconds ---" % (time.time() - start_time))