我目前使用Pillow(和windows)lib将两种类型的文件转换为jpeg。问题是我创建了一个tmp文件来改变(裁剪/重新调整大小/旋转/等),但后来我无法删除它。 如果文件是X类型,则可以删除,如果不是X类型,则会出错。 这两个文件类型的过程是一样的但是我在删除没有X类型的文件时遇到错误。 已经尝试强制fout.close(),即使"与#34;声明默认执行。
如果我在try上设置了try / except语句,我知道可以处理,但文件不会被删除。
只有一个程序实例在运行,文件/目录中没有并发,写权限没有问题,看起来我已经关闭了所有描述符。
#If the file is X TYPE
if is X:
# Search for X TYPE file header and store index
index = data.find(X_FILE_HEADER)
# Only process file containing X otherwise return
if index == -1:
self.my_logger.error(
'Could not find X signature on file "%s", ' % inputfile)
return
try:
outputfile += '.X'
with open(outputfile, 'wb') as fout:
fout.write(data[index:])
except:
self.my_logger.critical('Could not create file "%s"' % outputfile)
return
# Not X file type
else:
try:
with open(outputfile, 'wb') as fout:
fout.write(data)
except:
self.my_logger.critical('Could not create file "%s"' % outputfile)
return
# Check if chart name in conf file
for chart in self.chart_list:
if os.path.basename(outputfile).startswith(chart.name):
if isX:
tmp_chart_name = outputfile.replace(".x",".jpeg")
else:
tmp_chart_name = outputfile.replace(".z",".jpeg")
# Tmp for legend crop box usage
im = tmp = PIL.Image.open(outputfile)
# The output file wont have any timestamp
outputfile_jpeg = os.path.join(os.path.dirname(outputfile),tmp_chart_name)
# Check if rotation needed
if rotation:
im = im.rotate(float(rotation))
# Check if crop needed
if crop_box:
box = tuple(map(int, crop_box.split(',')))
im = im.crop(box)
im.copy()
# Check if legend crop/relocate needed
if legend_crop_box:
box = tuple(map(int, legend_crop_box.split(',')))
legend_box = tmp.crop(box)
im.paste(legend_box, (0, 0))
# Convert the image
im.convert('RGB').save(outputfile_jpeg)
im.close()
tmp.close()
# Delete png file - Where is where the problem/bug presists
if os.path.exists(outputfile):
os.remove(outputfile)
我得到的错误:
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Python27\lib\lib-tk\Tkinter.py", line 1532, in __call__
return self.func(*args)
File "getmail.py", line 512, in get_email
self.deamon.process_email()
File "getmail.py", line 175, in process_email
os.path.join(self.modifieddir, filename))
File "getmail.py", line 302, in convert_file
os.remove(outputfile)
WindowsError: [Error 32] The process cannot access the file because it is being used by another process: 'C:\\FILE_TRUNCADED_PATH\\my_file.x'
答案 0 :(得分:1)
这可能与这一行有关:
im = tmp = PIL.Image.open(outputfile)
实际上并没有打开图像的两个副本。相反,您可能需要以下内容:
im = PIL.Image.open(outputfile)
tmp = im.copy()