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main.py

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+import docx
+from docx.shared import Pt
+import gradio as gr
+
+# Helper to format circled numbers 1-20
+CIRCLED = {
+    i: chr(9311 + i) for i in range(1, 21)
+}
+
+def load_pi(path="pi.txt"):
+    with open(path, "r", encoding="utf-8") as f:
+        return f.read().strip()
+
+def make_doc(start_seg, end_seg, pi_path="pi.txt"):
+    # Segments start from 1
+    pi = load_pi(pi_path)
+    doc = docx.Document()
+
+    style = doc.styles["Normal"]
+    font = style.font #type: ignore
+    font.name = "Malgun Gothic"
+    font.size = Pt(10)
+
+    # Calculate the starting offset for the first line
+    first_offset = (start_seg // 10) * 10
+    last_offset = ((end_seg - 1) // 10) * 10  # adjust to prevent extra line
+
+    for offset in range(first_offset, last_offset + 1, 10):
+        line_segments = []
+        line_start = max(offset + 1, start_seg)
+        line_end = min(offset + 10, end_seg)
+        for s in range(line_start, line_end + 1):
+            idx = (s - 1) * 4
+            if idx + 4 > len(pi):
+                break
+            seg = pi[idx:idx+4]
+            n = s - offset  # position in line
+            circ = CIRCLED.get(n, str(n))
+            line_segments.append(f"{seg}{circ}")
+
+        if line_segments:
+            p = doc.add_paragraph()
+            run = p.add_run(str(offset))
+            run.bold = True
+            p.add_run(" | " + " ".join(line_segments))
+
+    out_name = "pi_segments.docx"
+    doc.save(out_name)
+    return out_name
+
+with gr.Blocks() as demo:
+    gr.Markdown("## π Segment DOCX Generator")
+    gr.Markdown("This web app generates a DOCX file showing π digits divided into 4-digit segments.\n\n"
+                "Segments are numbered starting from 1. Each line contains up to 10 segments, and the line starts with the offset (multiple of 10) in bold.\n\n"
+                "The circled number after each segment indicates its position within the line. You can use them as a checkbox after you memorized it.")
+
+    start_in = gr.Number(label="Start Segment (min 1)", value=1)
+    end_in = gr.Number(label="End Segment (max 250000)", value=100)
+    out = gr.File(label="Generated DOCX")
+
+    def run_app(a, b):
+        pi_file_path = "pi.txt"
+        if b > 250000:
+            raise gr.Error("End segment cannot exceed 250,000.")
+        return make_doc(int(a), int(b), pi_file_path)
+
+    btn = gr.Button("Generate")
+    btn.click(run_app, [start_in, end_in], out)
+
+if __name__ == "__main__":
+    demo.launch()

requirements.txt

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+aiofiles==24.1.0
+annotated-doc==0.0.4
+annotated-types==0.7.0
+anyio==4.11.0
+audioop-lts==0.2.2
+brotli==1.2.0
+certifi==2025.11.12
+click==8.3.1
+colorama==0.4.6
+fastapi==0.121.2
+ffmpy==1.0.0
+filelock==3.20.0
+fsspec==2025.10.0
+gradio==5.49.1
+gradio_client==1.13.3
+groovy==0.1.2
+h11==0.16.0
+hf-xet==1.2.0
+httpcore==1.0.9
+httpx==0.28.1
+huggingface_hub==1.1.4
+idna==3.11
+Jinja2==3.1.6
+lxml==6.0.2
+markdown-it-py==4.0.0
+MarkupSafe==3.0.3
+mdurl==0.1.2
+numpy==2.3.5
+orjson==3.11.4
+packaging==25.0
+pandas==2.3.3
+pillow==11.3.0
+pydantic==2.11.10
+pydantic_core==2.33.2
+pydub==0.25.1
+Pygments==2.19.2
+python-dateutil==2.9.0.post0
+python-docx==1.2.0
+python-multipart==0.0.20
+pytz==2025.2
+PyYAML==6.0.3
+rich==14.2.0
+ruff==0.14.5
+safehttpx==0.1.7
+semantic-version==2.10.0
+shellingham==1.5.4
+six==1.17.0
+sniffio==1.3.1
+starlette==0.49.3
+tomlkit==0.13.3
+tqdm==4.67.1
+typer==0.20.0
+typer-slim==0.20.0
+typing-inspection==0.4.2
+typing_extensions==4.15.0
+tzdata==2025.2
+uvicorn==0.38.0
+websockets==15.0.1