錯誤：Python 中未定義模組

Curtis Chau

更新:2026年1月31日

Translated

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您可能會遇到類似這樣的警告：

"ChromePdfRenderer" 未定義
"PdfCssMediaType" 未定義
"FitToPaperModes" 未定義

以上警告可以忽略。由於IronPDF for Python 使用了IronPDF C#，這些功能是在.NET 6.0 中實現的。因此，相關的類別定義可能無法在 Python 環境中直接檢視或定義。

以下是一個範例，說明在使用IronPDF程式庫時，如何在 Python 中遇到並處理這種情況。

# Importing the IronPDF module. This is assumed to be a hypothetical Python wrapper for IronPDF C# library.
# In practice, you might use a Python package manager to install and import the necessary module.
from ironpdf import ChromePdfRenderer, PdfCssMediaType, FitToPaperModes

# Example function using IronPDF components to illustrate usage
def generate_pdf():
    try:
        # Create a new PDF renderer
        renderer = ChromePdfRenderer()

        # Define options or configurations for the renderer
        renderer.css_media_type = PdfCssMediaType.PRINT
        renderer.fit_to_paper_mode = FitToPaperModes.FIT

        # Assume we have HTML content to convert to PDF
        html_content = "<h1>Hello, World!</h1>"

        # Render the HTML content to PDF
        pdf_document = renderer.render_html_as_pdf(html_content)

        # Save the PDF document to a file
        pdf_document.save_as("output.pdf")

    except Exception as e:
        # Log and handle any exceptions that occur during PDF generation
        print(f"An error occurred: {e}")

# Execute the function to generate a PDF
generate_pdf()

# Importing the IronPDF module. This is assumed to be a hypothetical Python wrapper for IronPDF C# library.
# In practice, you might use a Python package manager to install and import the necessary module.
from ironpdf import ChromePdfRenderer, PdfCssMediaType, FitToPaperModes

# Example function using IronPDF components to illustrate usage
def generate_pdf():
    try:
        # Create a new PDF renderer
        renderer = ChromePdfRenderer()

        # Define options or configurations for the renderer
        renderer.css_media_type = PdfCssMediaType.PRINT
        renderer.fit_to_paper_mode = FitToPaperModes.FIT

        # Assume we have HTML content to convert to PDF
        html_content = "<h1>Hello, World!</h1>"

        # Render the HTML content to PDF
        pdf_document = renderer.render_html_as_pdf(html_content)

        # Save the PDF document to a file
        pdf_document.save_as("output.pdf")

    except Exception as e:
        # Log and handle any exceptions that occur during PDF generation
        print(f"An error occurred: {e}")

# Execute the function to generate a PDF
generate_pdf()

PYTHON

解釋：

-導入語句：程式碼假定存在IronPDF for Python 包裝器或模組(ironpdf)。實際應用中需要透過套件管理器安裝模組。 -錯誤處理：函數 generate_pdf() 配備了 try-except 區塊，用於捕獲和處理由於 Python 中未定義的類別而可能發生的異常。