在Python2.7中,我需要对文件列表的列表执行相同的操作。在
例如, #每个文件都是一个文件描述符 例如,fileX=open(“someString”,“a”)
fileList1 = [file1, file2, file3,file4,file5]
fileList2 = [file11, file21, file31,file41,file51]
allFilelist = [fileList1, fileList2]
当我试图读/写一些字符串时,我得到:
^{pr2}$ # each file in allFilList is a file list
allFilList = [ifcxRpsFileNameL, ircxRpsFileNameL, transXRpsFileNameL, ifcxFileNameL,
ircxFileNameL, transXFileNameL]
for eachFileList in allFilList :
for item in eachFileList :
#print item.read
line = item.readline()
#for line in :
print "the line read from ", item, " is " , line
ll= line.strip("\n").split()
if len(ll) == 0 :
print "the file " , item , " is empty \n"
exit
elif len(ll) != TOTAL_ITR :
print "the len of the file " , item , " is not " , TOTAL_ITR , "\n"
exit
else:
item.write("\n")
lt = [float(num) for num in ll]
item.write(min(lt))
item.write(" ")
item.write(sum(lt)/len(lt))
item.write(" ")
item.write(max(lt))
item.write(" ")
item.write("\n")
item.close()
break
针对这一评论:
print out item before you try to read from it and post the output
输出是:<open file 'ND_ifxc_2010_RPS.dat', mode 'a' at 0x2ba38d1e9558>
您所遇到的问题来自于这样一个事实:您打开的文件是以
'a'
模式打开的,因此不是为了读取。因此,尝试从未打开进行读取的文件读取时会出现错误。在最好存储一个文件路径列表,然后执行以下操作:
'r'
模式打开'a'
模式重新打开并写入所需的行。在希望这有帮助
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