python - 在 Unix/Linux 上不会将输出写入日志文件，但在 Windows 上会写入

Question

我有以下代码，它将在两个平台上创建日志文件，但它只会将输出写入 Windows 日志文件。

import os                       

logdir = os.getenv("logs")                          
logfile = 'script_list.log'
path = (raw_input("Enter dir: "))                                   
if os.name == "posix":
    log = open("//".join([logdir,logfile]), 'w')                        
else:
    log = open("\\".join([logdir,logfile]), 'w')                        
for dirpath, dirname, filenames in os.walk(path):           
    for filename in [f for f in filenames]: 
        if os.name == "posix":
            log.write(str(dirpath)+ "//" + str(filename) + "\n")    
        else:
            log.write(str(dirpath)+ "\\" + str(filename) + "\n")    
print '\nYour logfile ' + logdir + '\\' + logfile + ' has been created'

提前致谢

Answer 1

建议你更换

if os.name == "posix":
    log = open("//".join([logdir,logfile]), 'w')                      
else :
    log = open("\\".join([logdir,logfile]), 'w')
...
    for filename in [f for f in filenames]:
        if os.name == "posix":
            log.write(str(dirpath)+ "//" + str(filename) + "\n")    
        else:
            log.write(str(dirpath)+ "\\" + str(filename) + "\n")    

与

log=open(os.path.join(logdir, logfile), 'w')
...
    for filename in filenames:
        log.write(os.path.join(dirpath, filename)+'\n')

或者更好的是，使用

logfilename=os.path.join(logdir, logfile)
log=open(logfilename, 'w')

...

print "Your logfile", logfilename, "has been created."

如@Lycha says ，最好再次关闭文件。所以你的构造将是

with open(logfilename, 'w') as log:
    ...