問題描述
打印 imagemagick 將輸出轉換為瀏覽器 (print imagemagick convert output to browser)
我有以下代碼：
import subprocess
convertargs = ['convert', 'image1.tif', 'img2.tif', 'pdf:‑']
print "Content‑type: application/pdf\r\n\r\n"
pdf = subprocess.Popen(convertargs, stdout=subprocess.PIPE)
pdf, error = pdf.communicate()
print pdf
它應該採用convertargs，使用imagemagick的convert將圖像轉換為pdf。
我知道這是可行的，因為當我運行在 shell 處跟隨：
./pdf.py > test.pdf
它為我創建了一個帶有正確圖像的整潔的小 PDF。但是，當我訪問 www.myhost.com/pdf.py 時，它不起作用。我不知道為什麼。這是我的 apache 錯誤日誌的內容：
Traceback (most recent call last):: /Library/WebServer/Documents/pdf.py
File "/Library/WebServer/Documents/pdf.py", line 59, in <module>: /Library/WebServer/Documents/pdf.py
pdf = subprocess.Popen(convertargs, stdout=subprocess.PIPE): /Library/WebServer/Documents/pdf.py
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 710, in __init__: /Library/WebServer/Documents/pdf.py
errread, errwrite): /Library/WebServer/Documents/pdf.py
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1335, in _execute_child: /Library/WebServer/Documents/pdf.py
raise child_exception: /Library/WebServer/Documents/pdf.py
OSError: [Errno 2] No such file or directory: /Library/WebServer/Documents/pdf.py
參考解法
方法 1:
subprocess.Popen can't find convert, probably because the webserver uses a different $PATH. Try feeding it the full path to convert instead of just convert.
(by Tom J、Jules G.M.)