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Code: Alles auswählen

# init Count
count = 0
# Loop forever
while True:  
  count = count + 1
  try:
    # open file
    path = 'C:\\text%s.txt'%count
    file = open (path, r)
    print '***   Begin reading file text%s.txt File   ***' % count  
    for line in file: 
      # hier lese ich die Datei aus
  except IOError:
    # warte 5 min und dann noch mal probieren

Code: Alles auswählen

from time import sleep

FILE_TEMPLATE = 'C:\\text%s.txt'

def main():
    count = 0
    def open_and_do():
        count = count + 1
        try:
            # open file
            path = FILE_TEMPLATE % count
            file = open (path, 'r')
            print '***   Begin reading file text%s.txt File   ***' % count  
            for line in file: 
                do_stuff(line)
        except IOError:
            sleep(300)
            return open_and_do()

    while True:
        open_and_do()

Code: Alles auswählen

def file_gen(count=0)
    def gen():
        try:
            path = FILE_TEMPLATE % count
            return open (path, 'r')
        except IOError:
            sleep(300)
            return gen()

    while True:
        count += 1
        yield gen()

Code: Alles auswählen

from itertools import count
from time import sleep


def main():
    for number in count(1):
        try:
            path = r'C:\text%s.txt' % number
            lines = open(path)
        except IOError:
            sleep(300)
        else:
            print '*** Begin reading file %s ***' % path
            for line in lines:
                pass
            lines.close()

Code: Alles auswählen

import sys

def tail_recursion_with_stack_inspection(g):
    '''
    Version of tail_recursion decorator using stack-frame inspection.    
    '''
    loc_vars ={"in_loop":False,"cnt":0}
    
    def result(*args, **kwd):
        if not loc_vars["in_loop"]:
            loc_vars["in_loop"] = True
            while 1:            
                tc = g(*args,**kwd)
                try:                    
                    qual, args, kwd = tc
                    if qual == 'continue':
                        continue
                except TypeError:                    
                    loc_vars["in_loop"] = False
                    return tc                                    
        else:
            f = sys._getframe()
            if f.f_back and f.f_back.f_back and \
                  f.f_back.f_back.f_code == f.f_code:
                return ('continue',args, kwd)
            return g(*args,**kwd)
    return result

def file_gen(count=0)
    @tail_recursion_with_stack_inspection
    def gen():
        try:
            path = FILE_TEMPLATE % count
            return open (path, 'r')
        except IOError:
            sleep(300)
            return gen()
    while True:
        count += 1
        yield gen()

Code: Alles auswählen

def file_gen()
    def gen():
        while True
            try:
                path = FILE_TEMPLATE % count
                return open (path, 'r')
            except IOError:
                sleep(300)
                continue
    while True:
        count += 1
        yield gen()

Code: Alles auswählen

from itertools import count
from time import sleep

FILENAME_TEMPLATE = r'C:\text%s.txt'

retry_open(filename, mode, wait_time=300, max_retry=None):
    for retry in count(1):
        try:
            return open(filename, mode)
        except IOError:
            if max_retry and retry >= max_retry:
                raise
            else:
                sleep(wait_time)

def main():
    for lines in (retry_open(FILENAME_TEMPLATE % n) for n in count(1)):
        print '*** Begin reading file %s ***' % lines.name
        for line in lines:
            pass
        lines.close()