[英]Sips command in a Python script is not working - “Error 4: no file was specified” and “not a valid file - skipping”
嘗試通過Python腳本調整某些圖像的大小(僅寬度)。 這是一個Python腳本:
# -*- coding: utf-8 -*-
import subprocess
import os
# New width
new_width = '200'
# Create for converted images
create_directory_out = subprocess.run(['mkdir', '-p', './Result'])
# Directory with started images
directory_source = 'Source'
# Directory with converted images
directory_out = 'Result'
# get list of started images to variable files
files = os.listdir(directory_source)
# Filtre by mask .jpg to variable images
images = filter(lambda x: x.endswith('.jpg'), files)
img_list = list(images)
# Loop of convert images by sips
for file_name in img_list:
print(file_name)
subprocess.run(['sips', '--resampleWidth', 'new_width', '--out', './directory_out/file_name', './directory_source/file_name', ])
我收到一個錯誤:
face-04.jpg
Warning: ./directory_source/file_name not a valid file - skipping
Error 4: no file was specified
Try 'sips --help' for help using this tool
face-04.jpg
但是終端中的sips命令可以正常工作:
sips --resampleWidth 200 --out ./Result/face-04.jpg ./Source/face-04.jpg
還有什么可能出問題了?
先謝謝您的幫助。
您正在將文字與變量混合在一起:
subprocess.run(['sips', '--resampleWidth', 'new_width', '--out', './directory_out/file_name', './directory_source/file_name', ])
嘗試從字面上訪問'./directory_out/file_name'
!
您需要實際使用變量並join
目錄和文件名:
subprocess.run(['sips', '--resampleWidth', 'new_width', '--out', os.path.join(directory_out,file_name), os.path.join(directory_source,file_name)])
在旁邊:
create_directory_out = subprocess.run(['mkdir', '-p', './Result'])
可以替換為本地python調用:
os.makedirs(directory_out)
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