运行手写问询卡识别提交代码时遇pytesseract文件未找到错误求助

该程序用于拍摄手写问询卡照片，提取卡上文本信息并提交至在线表单，代码如下：

import pytesseract
from PIL import Image

# Open the image file using PIL library
image = Image.open('inquirycard.jpg')

# Extract text from the image using pytesseract
text = pytesseract.image_to_string(image)

# Save the extracted text to a file
with open('extracted_text.txt', 'w') as file:
    file.write(text)

import pandas as pd

# Read the extracted text file using Pandas
df = pd.read_csv('extracted_text.txt', delimiter='\t', header=None)

# Save the text to a CSV file
df.to_csv('extracted_text.csv', index=False)

from selenium import webdriver
from selenium.webdriver.common.keys import Keys

# Open the online form using Selenium
driver = webdriver.Chrome()
driver.get('https://your-online-form-url.com')

# Find the input element on the online form using its ID
input_element = driver.find_element_by_id('input-element-id')

# Read the text from the spreadsheet using Pandas
df = pd.read_csv('extracted_text.csv')
text = df.to_string(index=False, header=False)

# Enter the text into the input element and submit the form
input_element.send_keys(text)
input_element.send_keys(Keys.RETURN)

# Close the browser
driver.quit()

报错信息 #

运行时触发以下错误：

File "C:\Users\*******\********\*******\untitled\venv\lib\site-packages\pytesseract\pytesseract.py", line 255, in run_tesseract
    proc = subprocess.Popen(cmd_args, **subprocess_args())
  File "C:\Users\*******\AppData\Local\Programs\Python\Python39\lib\subprocess.py", line 947, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "C:\Users\*******\AppData\Local\Programs\Python\Python39\lib\subprocess.py", line 1416, in _execute_child
    hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
FileNotFoundError: [WinError 2] The system cannot find the file specified

处理上述异常时，又触发二次异常：

Traceback (most recent call last):
  File "C:\Users\*****\*******\******\untitled\Main.py", line 8, in <module>
    text = pytesseract.image_to_string(image)
  File "C:\Users\******\********\*******\untitled\venv\lib\site-packages\pytesseract\pytesseract.py", line 423, in image_to_string
    return {
  File "C:\Users\******\********\*******\untitled\venv\lib\site-packages\pytesseract\pytesseract.py", line 426, in <lambda>
    Output.STRING: lambda: run_and_get_output(*args),
  File "C:\Users\*********\******\*******\untitled\venv\lib\site-packages\pytesseract\pytesseract.py", line 288, in run_and_get_output
    run_tesseract(**kwargs)
  File "C:\Users\*******\*******\*********\untitled\venv\lib\site-packages\pytesseract\pytesseract.py", line 260, in run_tesseract
    raise TesseractNotFoundError()
pytesseract.pytesseract.TesseractNotFoundError: tesseract is not installed or it's not in your PATH. See README file for more information.

解决步骤 #

这个错误的核心是Tesseract OCR引擎未安装，或未加入系统环境变量PATH，按以下步骤解决：

1. 安装Tesseract OCR引擎

   • Windows系统：下载Tesseract官方安装包，安装时务必勾选“Add to PATH”选项。如果安装时没选，手动找到安装目录（默认一般是C:\Program Files\Tesseract-OCR），将该路径添加到系统环境变量PATH中。
   • 重启命令行或IDE，确保环境变量生效。

2. 配置pytesseract路径（可选，若自动识别失败）
   在代码开头添加一行，指定Tesseract的安装路径：

   pytesseract.pytesseract.tesseract_cmd = r'C:\Program Files\Tesseract-OCR\tesseract.exe'
   

   注意替换成你实际的安装路径。

3. 代码优化（可选）
   原代码中用Pandas转存txt为csv再读取的步骤完全多余，可直接用提取的文本提交，简化代码：

   import pytesseract
   from PIL import Image
   from selenium import webdriver
   from selenium.webdriver.common.keys import Keys
   
   # 指定Tesseract路径（如果需要）
   pytesseract.pytesseract.tesseract_cmd = r'C:\Program Files\Tesseract-OCR\tesseract.exe'
   
   # 提取图片文本
   image = Image.open('inquirycard.jpg')
   text = pytesseract.image_to_string(image)
   
   # 提交表单
   driver = webdriver.Chrome()
   driver.get('https://your-online-form-url.com')
   input_element = driver.find_element_by_id('input-element-id')
   input_element.send_keys(text)
   input_element.send_keys(Keys.RETURN)
   driver.quit()
   

内容的提问来源于stack exchange，提问作者Guardian