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https://issues.apache.org/jira/browse/NIFI-12619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17807884#comment-17807884
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ASF subversion and git services commented on NIFI-12619:
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Commit 6e9da11be9bf80ac1c2e85c92355d1ae4d3d117b in nifi's branch
refs/heads/main from Pierre Villard
[ https://gitbox.apache.org/repos/asf?p=nifi.git;h=6e9da11be9 ]
NIFI-12619 Fixed Python dependencies in ParseDocument
This closes #8255
Signed-off-by: David Handermann <exceptionfact...@apache.org>
> Unable to instantiate ParseDocument processor
> ---------------------------------------------
>
> Key: NIFI-12619
> URL: https://issues.apache.org/jira/browse/NIFI-12619
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 2.0.0-M1
> Environment: Python 3.11.6
> Reporter: Pierre Villard
> Assignee: Pierre Villard
> Priority: Major
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Trying to instantiate the Python processor ParseDocument, I get this error:
> {code:java}
> 2024-01-16 18:00:00,573 INFO org.apache.nifi.py4j.ExtensionManager Importing
> dependencies ['langchain', 'unstructured', 'unstructured-inference',
> 'unstructured_pytesseract', 'numpy', 'opencv-python', 'pdf2image',
> 'pdfminer.six[image]', 'python-docx', 'openpyxl', 'python-pptx'] for
> ParseDocument to
> /Users/pierre/dev/github/nifi/nifi-assembly/target/nifi-2.0.0-SNAPSHOT-bin/nifi-2.0.0-SNAPSHOT/./work/python/extensions/ParseDocument/2.0.0-SNAPSHOT
> using command
> ['/Users/pierre/dev/github/nifi/nifi-assembly/target/nifi-2.0.0-SNAPSHOT-bin/nifi-2.0.0-SNAPSHOT/./work/python/extensions/ParseDocument/2.0.0-SNAPSHOT/bin/python3',
> '-m', 'pip', 'install', '--no-cache-dir', '--target',
> '/Users/pierre/dev/github/nifi/nifi-assembly/target/nifi-2.0.0-SNAPSHOT-bin/nifi-2.0.0-SNAPSHOT/./work/python/extensions/ParseDocument/2.0.0-SNAPSHOT',
> 'langchain', 'unstructured', 'unstructured-inference',
> 'unstructured_pytesseract', 'numpy', 'opencv-python', 'pdf2image',
> 'pdfminer.six[image]', 'python-docx', 'openpyxl', 'python-pptx']
> 2024-01-16 18:00:15,752 ERROR py4j.java_gateway There was an exception while
> executing the Python Proxy on the Python Side.
> Traceback (most recent call last):
> File
> "/Users/pierre/dev/github/nifi/nifi-assembly/target/nifi-2.0.0-SNAPSHOT-bin/nifi-2.0.0-SNAPSHOT/python/framework/py4j/java_gateway.py",
> line 2466, in _call_proxy
> return_value = getattr(self.pool[obj_id], method)(*params)
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> File
> "/Users/pierre/dev/github/nifi/nifi-assembly/target/nifi-2.0.0-SNAPSHOT-bin/nifi-2.0.0-SNAPSHOT/./python/framework/Controller.py",
> line 72, in downloadDependencies
> self.extensionManager.import_external_dependencies(processor_details,
> work_dir)
> File
> "/Users/pierre/dev/github/nifi/nifi-assembly/target/nifi-2.0.0-SNAPSHOT-bin/nifi-2.0.0-SNAPSHOT/python/framework/ExtensionManager.py",
> line 511, in import_external_dependencies
> raise RuntimeError(f"Failed to import requirements for {class_name}:
> process exited with status code {result}")
> RuntimeError: Failed to import requirements for ParseDocument: process exited
> with status code
> CompletedProcess(args=['/Users/pierre/dev/github/nifi/nifi-assembly/target/nifi-2.0.0-SNAPSHOT-bin/nifi-2.0.0-SNAPSHOT/./work/python/extensions/ParseDocument/2.0.0-SNAPSHOT/bin/python3',
> '-m', 'pip', 'install', '--no-cache-dir', '--target',
> '/Users/pierre/dev/github/nifi/nifi-assembly/target/nifi-2.0.0-SNAPSHOT-bin/nifi-2.0.0-SNAPSHOT/./work/python/extensions/ParseDocument/2.0.0-SNAPSHOT',
> 'langchain', 'unstructured', 'unstructured-inference',
> 'unstructured_pytesseract', 'numpy', 'opencv-python', 'pdf2image',
> 'pdfminer.six[image]', 'python-docx', 'openpyxl', 'python-pptx'],
> returncode=1) {code}
> If trying to run the pip command manually, I get
> {code:java}
> no matches found: pdfminer.six[image] {code}
> Changing the required dependency to just *pdfminer.six* fixes the issue and I
> can instantiate the processor.
> However when trying to use it against a PDF file, I get:
> {code:java}
> ModuleNotFoundError: No module named 'pikepdf'
> ModuleNotFoundError: No module named 'pypdf'{code}
> After adding the above dependencies, I get:
> {code:java}
> pdf2image.exceptions.PDFInfoNotInstalledError: Unable to get page count. Is
> poppler installed and in PATH? {code}
> Based on
> [https://pdf2image.readthedocs.io/en/latest/installation.html]
> It sounds like poppler would need to be installed separately. I did it with
> brew for my local instance. -Probably worth adding this in the docs if
> doable.- This is specified in the description of the processor.
> At this point I was able to use the processor to parse a PDF file.
>
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