我已经在这里发帖一段时间了，试图找出我看不见的 python 问题的原因。在本地，我的脚本运行良好，但是当我上传它时，它只执行了一半。
我的 python 脚本生成一个 html 文件。我已经对 python 脚本进行了 cron-jobbed，以便我的文件每隔几分钟更新一次。但是，它只是创建前几行代码并停止。
我相信原因是（经过一些调查）我的服务器正在运行 Python 2.4 而我正在运行 2.7。但是，我不确定如何将我的脚本升级（降级？）到 2.4。我认为这只是我存在的祸根的一行代码。
以下是相关代码：
phone.py：这会调用另一个文件 SearchPhone 并将 html 生成到 celly.html
from SearchPhone import SearchPhone
phones = ["iphone 4", "iphone 5", "iphone 3"]
f = open('celly.html','w')
f.write("""<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Celly Blue Book</title>
</head>
<body>
</body>
</html>
""")
#table
f.write('<table width="100%" border="1">')
for x in phones:
print "Pre-Searchphone DEBUG" ##THIS PRINTS!!
y = SearchPhone(x) ## <--Here is the culprit.
print "Post-SearchPhone DEBUG" ##THIS DOES NOT!!
f.write( "\t<tr>")
f.write( "\t\t<td>" + str(y[0]) + "</td>")
f.write( "\t\t<td>" + str(y[1]) + "</td>")
f.write( "\t\t<td>" + str(y[2]) + "</td>")
f.write( "\t\t<td>" + str(y[3]) + "</td>")
f.write( "\t\t<td>" + str(y[4]) + "</td>")
f.write( "\t</tr>")
f.write('</table>')
f.close()
SearchPhone.py：这会搜索电话并由phones.py调用
from BeautifulSoup import BeautifulSoup
import urllib
import re
def SearchPhone(phone):
y = "http://losangeles.craigslist.org/search/moa?query=" + phone + "+-%22buy%22+-%22fix%22+-%22unlock%22+-%22broken%22+-%22cracked%22+-%22parts%22&srchType=T&minAsk=&maxAsk="
site = urllib.urlopen(y)
html = site.read()
site.close()
soup = BeautifulSoup(html)
prices = soup.findAll("span", {"class":"itempp"})
prices = [str(j).strip('<span class="itempp"> $</span>') for j in prices]
for k in prices[:]:
if k == '': #left price blank
prices.remove(k)
elif int(k) <= 75: #less than $50: probably a service (or not true)
prices.remove(k)
elif int(k) >= 999: #probably not true
prices.remove(k)
#Find Average Price
intprices = []
newprices = prices[:]
total = 0
for k in newprices:
total += int(k)
intprices.append(int(k))
intprices = sorted(intprices)
try:
del intprices[0]
del intprices[-1]
avg = total/len(newprices)
low = intprices[0]
high = intprices[-1]
if len(intprices) % 2 == 1:
median = intprices[(len(intprices)+1)/2-1]
else:
lower = intprices[len(intprices)/2-1]
upper = intprices[len(intprices)/2]
median = (float(lower + upper)) / 2
namestr = str(phone)
medstr = "Median: $" + str(median)
avgstr = "Average: $" + str(avg)
lowstr = "Low: $" + str(intprices[0])
highstr = "High: $" + str(intprices[-1])
samplestr = "# of samples: " + str(len(intprices))
linestr = "-------------------------------"
except IndexError:
namestr = str(phone)
medstr = "N/A"
avgstr = "N/A"
lowstr = "N/A"
highstr = "N/A"
samplestr = "N/A"
linestr = "-------------------------------"
return (namestr, medstr, avgstr, lowstr, highstr, samplestr, linestr)
这是追溯：
Pre-SearchPhone DEBUG
Traceback (most recent call last):
File "/home/tseymour/public_html/celly/phones.py", line 35, in ?
y = SearchPhone(x)
File "/home/tseymour/public_html/celly/SearchPhone.py", line 11, in SearchPhone
site = urllib.urlopen(y)
File "/usr/lib64/python2.4/urllib.py", line 82, in urlopen
return opener.open(url)
File "/usr/lib64/python2.4/urllib.py", line 190, in open
return getattr(self, name)(url)
File "/usr/lib64/python2.4/urllib.py", line 322, in open_http
return self.http_error(url, fp, errcode, errmsg, headers)
File "/usr/lib64/python2.4/urllib.py", line 339, in http_error
return self.http_error_default(url, fp, errcode, errmsg, headers)
File "/usr/lib64/python2.4/urllib.py", line 579, in http_error_default
return addinfourl(fp, headers, "http:" + url)
File "/usr/lib64/python2.4/urllib.py", line 883, in __init__
addbase.__init__(self, fp)
File "/usr/lib64/python2.4/urllib.py", line 830, in __init__
self.read = self.fp.read
AttributeError: 'NoneType' object has no attribute 'read'
感谢所有的帮助。
泰勒