[Tutor] file object in memory
bgailer at gmail.com
Fri Jul 4 23:50:56 CEST 2008
Monika Jisswel wrote:
> Hi everyone,
> In my program I have this code :
> self.run_cmd_0 = subprocess.Popen(self.cmd_0, stdout =
> subprocess.PIPE, shell = True) #(1)
> self.run_cmd_1 = subprocess.Popen(self.TOCOL, stdin =
> self.run_cmd_0.stdout, stdout = subprocess.PIPE, shell = True) #(2)
> self.result_0 =
> StringIO.StringIO(self.run_cmd_1.communicate()) #(3)
> (1) : executes cmd_0 as a subprocess with stdout to PIPE
> (2) : executes cmd_1 a second process with stdin from the previouse cmd_0
> (3) : Here I tried to use StringIO module to create a file object from
> stdout of cmd_1 : I need a file object because I have a mysql query
> later in my program to load it into the database :
> self.cmd_sql_2 = "load data local infile '%s' into table
> statistics fields terminated by '\t' lines terminated by '\n'" %
> so self.cur.execute(self.cmd_sql_2) fails.
> the problem is that mysql is expecting a REAL file for this query !!
> is there any pythonic way of avoiding to write to disk before loading
> into Mysql database ? some sort of in-memory file oject.
I don't think there is a pure Pythonic way. Have you considered using a
RamDisk? http://en.wikipedia.org/wiki/RAM_disk for general details.
for a Windows Ram Disk driver installer. I just tried it - it works like
919-636-4239 Chapel Hill, NC
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