Troubleshoot PDF creation by trying pandoc, then reportlab, then fpdf2. Check tool availability, install missing Python libraries as needed, run generation with an explicit working directory, and verify that the output file exists.
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Systematic fallback workflow for PDF generation through pandoc, reportlab, and fpdf2 with installation verification
安装前可以查看交给 AI 代理的指令内容。
This skill provides a systematic approach to generating PDFs when multiple tools may be unavailable. Follow this fallback sequence to ensure PDF generation succeeds.
Each step includes installation verification before execution.
Use pandoc for markdown or HTML to PDF conversion. Check availability first:
# Check if pandoc is available
which pandoc || echo "pandoc not found"
If available, convert:
pandoc input.md -o output.pdf
If pandoc fails or is unavailable, proceed to Step 2.
python3 -c "import reportlab" 2>/dev/null && echo "reportlab available" || echo "reportlab not found"
pip install reportlab
Use write_file to create a Python script:
from reportlab.lib.pagesizes import letter
from reportlab.pdfgen import canvas
def create_pdf(filename, content):
c = canvas.Canvas(filename, pagesize=letter)
c.drawString(100, 750, content)
c.save()
if __name__ == "__main__":
create_pdf("output.pdf", "Your content here")
Use run_shell with proper directory context:
cd /path/to/working/directory && python3 script.py
If reportlab fails, proceed to Step 3.
python3 -c "from fpdf import FPDF" 2>/dev/null && echo "fpdf2 available" || echo "fpdf2 not found"
pip install fpdf2
from fpdf import FPDF
def create_pdf(filename, text):
pdf = FPDF()
pdf.add_page()
pdf.set_font("Arial", size=12)
pdf.cell(200, 10, txt=text, ln=True)
pdf.output(filename)
if __name__ == "__main__":
create_pdf("output.pdf", "Your content here")
cd /path/to/working/directory && python3 script.py
| Tool | Best For | Limitations |
|---|---|---|
| pandoc | Markdown/HTML conversion | Requires external installation |
| reportlab | Complex layouts, graphics | Steeper learning curve |
| fpdf2 | Simple text PDFs | Limited formatting options |
For each tool attempt:
pip install <package>)write_filerun_shell with cd <dir> && <command># Pseudocode for full workflow
if command -v pandoc >/dev/null 2>&1; then
pandoc input.md -o output.pdf && exit 0
fi
if python3 -c "import reportlab" 2>/dev/null; then
# Create and run reportlab script
exit 0
fi
# Final fallback: fpdf2
pip install fpdf2
# Create and run fpdf2 script
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Prepare audio stems, the separate parts of a track, for mixing by matching their durations with silence, loops, or crossfades. Verify each generated and processed file before moving to the next production step.
中文简介正在准备中。当前显示英语简介。
Produce audio in separate stems, meaning individual instrument tracks, and verify each output as you go. Align track lengths with silence, loops, or crossfades, then apply effects, mix a master, and package the files.
中文简介正在准备中。当前显示英语简介。
Build serverless endpoints that relay external API requests for a dashboard while keeping API keys on the server. Includes Vercel examples for input checks, caching, cross-origin access, and consistent JSON responses.
中文简介正在准备中。当前显示英语简介。
Produce a master track and separate audio parts through a structured Python workflow. Apply filters and reverb, export WAV files with consistent settings, package them in a ZIP archive, and check that the deliverables meet the requested specifications.
中文简介正在准备中。当前显示英语简介。
Keep document creation moving when web searches and page retrieval repeatedly fail. The skill preserves the original task, uses the model’s existing knowledge, and clearly identifies information that could not be checked against external sources.
中文简介正在准备中。当前显示英语简介。
When Python execution repeatedly fails in execute_code_sandbox, use a file-based alternative: save the script, run it through the shell, and capture results or errors. The guidance covers paths, imports, timeouts, structured output, and optional cleanup.
中文简介正在准备中。当前显示英语简介。