cx_Freeze：在其他PC上使用pytesseract可執行文件失敗

Question

我已經使用cx_Freeze從我的Python-OCR程序（ import pytesseract ）中創建了一個可執行文件。 生成的.exe在我自己的計算機上可以正常工作。 為了測試該程序，我制作了一個zip文件夾，並在共享點上與一些朋友和同事共享。 現在，可執行文件存在以下問題。 似乎pytesseract沒有包含在可執行文件/ zip文件夾中。

這是ErrorLog：

The file is not a PNG-file:  20181108 Kontaktanzeigen-Er_sucht_sie.jpg
The file is not a PNG-file:  20181108 Kontaktanzeigen-Sie_sucht_ihn.jpg
The file is not a PNG-file:  20181108 Language family tree.jpg
The file is not a PNG-file:  20181108 relax.jpg
The file is not a PNG-file:  20181109 Essen wie Gott am Südpol S1.JPG
The file is not a PNG-file:  20181109 Fahrzeugschein1.jpg
The file is not a PNG-file:  20181112 sie_sind_alle_so_dumm.jpg
Exception in thread Thread-3:
Traceback (most recent call last):
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\lib\site-packages\pytesseract\pytesseract.py", line 170, in run_tesseract
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\lib\subprocess.py", line 707, in __init__
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\lib\subprocess.py", line 992, in _execute_child
FileNotFoundError: [WinError 2] Das System kann die angegebene Datei nicht finden

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\lib\threading.py", line 916, in _bootstrap_inner
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\lib\threading.py", line 864, in run
  File "C:\Users\TFischer\PycharmProjects\Test_Project\OCR.py", line 67, in img_to_text
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\lib\site-packages\pytesseract\pytesseract.py", line 294, in image_to_string
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\lib\site-packages\pytesseract\pytesseract.py", line 202, in run_and_get_output
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\lib\site-packages\pytesseract\pytesseract.py", line 172, in run_tesseract
pytesseract.pytesseract.TesseractNotFoundError: tesseract is not installed or it's not in your path

Exception in thread Thread-2:
Traceback (most recent call last):
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\lib\site-packages\pytesseract\pytesseract.py", line 170, in run_tesseract
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\lib\subprocess.py", line 707, in __init__
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\lib\subprocess.py", line 992, in _execute_child
FileNotFoundError: [WinError 2] Das System kann die angegebene Datei nicht finden

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\lib\threading.py", line 916, in _bootstrap_inner
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\lib\threading.py", line 864, in run
  File "C:\Users\TFischer\PycharmProjects\Test_Project\OCR.py", line 73, in img_to_text1
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\lib\site-packages\pytesseract\pytesseract.py", line 294, in image_to_string
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\lib\site-packages\pytesseract\pytesseract.py", line 202, in run_and_get_output
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\lib\site-packages\pytesseract\pytesseract.py", line 172, in run_tesseract
pytesseract.pytesseract.TesseractNotFoundError: tesseract is not installed or it's not in your path

第一行是絕對清楚的。 我發現了一些修改setup.py想法，以將所有導入內容包含在cx_Freeze創建的可執行文件中。 這是最新版本。

from cx_Freeze import setup, Executable
import os.path

PYTHON_INSTALL_DIR = os.path.dirname(os.path.dirname(os.__file__))
os.environ['TCL_LIBRARY'] = os.path.join(PYTHON_INSTALL_DIR, 'tcl', 'tcl8.6')
os.environ['TK_LIBRARY'] = os.path.join(PYTHON_INSTALL_DIR, 'tcl', 'tk8.6')

additional_mods = ['numpy.core._methods', 'numpy.lib.format']
additional_files = [os.path.join(PYTHON_INSTALL_DIR, 'DLLs', 'tk86t.dll'),
            os.path.join(PYTHON_INSTALL_DIR, 'DLLs', 'tcl86t.dll')]

options = {
    'build_exe': {'include_files': additional_files, 'includes': additional_mods}
    }

setup(options = options,
      name = "main" ,
      version = "0.1" ,
      description = "" ,
      executables = [Executable("main.py")])

Answer 1

pytesseract是Google Tesseract-OCR引擎的包裝。 為了使pytesseract正常工作，需要安裝Tesseract-OCR引擎，並且必須能夠將tesseract命令作為tesseract調用（這意味着Tesseract-OCR安裝目錄必須位於PATH中）。

我相信pytesseract已正確包含在可執行文件中，但tesseract命令在“另一台PC”上不起作用（要么Tesseract-OCR未安裝在該目錄中，要么Tesseract-OCR安裝目錄不在該路徑中）。

您需要告訴“另一台PC”的所有者安裝Tesseract-OCR，並檢查是否可以從任何位置使用tesseract命令啟動它。

另一種選擇是使用包括在冷凍可執行整個的Tesseract-OCR安裝目錄build_exe選項include_files （你的變量additional_files ），並確保此列入目錄被包含在目標計算機上的路徑，但是這可能不是與平台無關，因此不建議使用。