About WARNING when packaging with pyinstaller using pyocr

Introduction

Hello, nice to meet you, good night. I'm sorry.

The information available in this article is:

--If you are using pyocr and packaging with pyinstaller, remove the WARNING that appears. --tesseract-How to distribute exe using OCR / pyocr

Reproduction

  1. Install Tesseract-OCR separately (Teacher! I think this is the number one cause!)

  2. Write * .py with the appropriate pyocr

  3. pyinstaller hoge.py

  4. When you start foo.exe spit out with dist, the following log is output ...

Running from container, but no tessdata (C:\Users\{user}\AppData\Local\Temp\_MEI{tempnumber}\data) found !
Running from container, but no tessdata (C:\Users\{user}\AppData\Local\Temp\_MEI{tempnumber}\data) found !

Well, even if this happens, if Tesseract-OCR is installed separately on the target PC, it can be executed, so there are not many people who are fundamentally in trouble ...

However, since it is dirty, I will erase it.

Cause

If you glance inside pyocr, you will find it near Line: 120 in tesseract.py.

This is the cause.

    if getattr(sys, 'frozen', False):  # pragma: no cover
        # Pyinstaller support
        path = os.environ["PATH"]
        if sys._MEIPASS in path:
            # already changed
            return

        tesspath = os.path.join(sys._MEIPASS, "tesseract")
        tessprefix = os.path.join(sys._MEIPASS, "data")
        logger.info("Running in packaged environment")

        if not os.path.exists(os.path.join(tessprefix, "tessdata")):
            logger.warning(
                "Running from container, but no tessdata ({}) found !".format(
                    tessprefix
                )
            )
        else:
            logger.info("TESSDATA_PREFIX set to [{}]".format(tessprefix))
            os.environ['TESSDATA_PREFIX'] = tessprefix
        if not os.path.exists(tesspath):
            logger.warning(
                "Running from container, but no tesseract ({}) found !".format(
                    tesspath
                )
            )
        else:
            logger.info("[{}] added to PATH".format(tesspath))
            os.environ['PATH'] = (
                tesspath + os.pathsep + os.environ['PATH']
            )

It seems that they are doing various things, but the user does not know this (crying)

Apparently it would be nice if sys._MEIPASS had tesseract and data.

Then you can add tesseract and data to sys._MEIPASS! Solution! Enthusiasm! READY to FIGHT!

Add the following to * .spec

          Tree('{Tesseract-OCR path}',prefix='tesseract'),
          Tree('{Tesseract-OCR path}',prefix='data'),

Run!

Running from container, but no tessdata (C:\Users\{user}\AppData\Local\Temp\_MEI{tempnumber}\data) found !
Running from container, but no tessdata (C:\Users\{user}\AppData\Local\Temp\_MEI{tempnumber}\data) found !

It seems that the fighting power is still insufficient.

Method

First from the directory structure

Eventually it became like this.

I have to have more tessdata in the data, and I don't understand the meaning because the contents are duplicated. (Maybe there is a better solution ...)

Addition to * .spec

# -*- mode: python ; coding: utf-8 -*-

block_cipher = None


a = Analysis(['{main}.py'],
             pathex=['{src_dir}'],
             binaries=[],
             datas=[],
             hiddenimports=[],
             hookspath=[],
             runtime_hooks=[],
             excludes=[],
             win_no_prefer_redirects=False,
             win_private_assemblies=False,
             cipher=block_cipher,
             noarchive=False)
pyz = PYZ(a.pure, a.zipped_data,
             cipher=block_cipher)
exe = EXE(pyz,
          Tree('{data}',prefix='data'),
          Tree('{tesseract}',prefix='tesseract'),
          a.scripts,
          a.binaries,
          a.zipfiles,
          a.datas,
          [],
          name='{appname}',
          debug=False,
          bootloader_ignore_signals=False,
          strip=False,
          upx=True,
          upx_exclude=[],
          runtime_tmpdir=None,
          console=True , icon='icon.ico')

There is no change here.

{main}.py {} .py No special description required

pyinstaller! Now that you're ready

$> pyinstaller --onefile --clean --icon={icon}.ico -n {appname} {main}.py

And make {appname} .spec as above

$> pyinstaller {appname}.spec

And distribute {appname} .exe under dist and it's okay!

This is just a Windows environment method, but of course you do not need to install Tesseract-OCR separately on the target PC.

If there is a better way, I would appreciate it if you could teach me in the reply on Twitter or in the comments here!

Then Otonoshi

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