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| import gradio as gr | |
| import pandas as pd | |
| from pytrends.request import TrendReq | |
| import plotly.express as px | |
| import plotly.graph_objects as go | |
| DEVELOPER_NAME = "黃千宥、陳奕瑄、汪于捷、李哲弘、洪寓澤" | |
| # 初始化 pytrends | |
| # hl='zh-TW' -> 繁體中文, tz=480 -> 台灣時區 (GMT+8) | |
| pytrends = TrendReq(hl='zh-TW', tz=480) | |
| PLOTLY_TEMPLATE = "plotly_dark" | |
| def analyze_google_trends(keywords_str: str, timeframe: str): | |
| """ | |
| 根據輸入的關鍵字和時間範圍,從 Google Trends 獲取並分析資料。 | |
| Args: | |
| keywords_str: 以逗號分隔的關鍵字字串。 | |
| timeframe: Gradio 選項對應的時間範圍字串。 | |
| Returns: | |
| 一個包含兩個 Plotly 圖表的元組 (時間趨勢圖, 區域熱度圖)。 | |
| """ | |
| if not keywords_str: | |
| gr.Warning("請至少輸入一個關鍵字!") | |
| # 回傳空的圖表 | |
| return go.Figure(), go.Figure() | |
| # 解析關鍵字 | |
| kw_list = [kw.strip() for kw in keywords_str.split(',')] | |
| if len(kw_list) > 5: | |
| gr.Warning("為了圖表清晰,最多支援比較 5 個關鍵字。") | |
| kw_list = kw_list[:5] | |
| # 對應 Gradio 選項到 pytrends 的時間格式 | |
| timeframe_map = { | |
| "過去 7 天": 'now 7-d', | |
| "過去一個月": 'today 1-m', | |
| "過去三個月": 'today 3-m', | |
| "過去一年": 'today 12-m', | |
| } | |
| selected_timeframe = timeframe_map.get(timeframe, 'now 7-d') | |
| try: | |
| # 1. 獲取時間序列資料 | |
| pytrends.build_payload(kw_list, cat=0, timeframe=selected_timeframe, geo='', gprop='') | |
| interest_over_time_df = pytrends.interest_over_time() | |
| if interest_over_time_df.empty: | |
| gr.Warning(f"找不到關於 '{keywords_str}' 的時間趨勢資料。") | |
| time_fig = go.Figure() | |
| else: | |
| interest_over_time_df = interest_over_time_df.drop(columns=['isPartial'], errors='ignore') | |
| time_fig = plot_interest_over_time(interest_over_time_df, f"'{', '.join(kw_list)}' 在 {timeframe} 的搜尋熱度趨勢") | |
| # 2. 獲取區域熱度資料 | |
| # 注意:區域熱度分析不支援多個關鍵字同時比較,因此我們只分析第一個關鍵字 | |
| first_keyword = kw_list[0] | |
| pytrends.build_payload([first_keyword], cat=0, timeframe=selected_timeframe, geo='', gprop='') | |
| interest_by_region_df = pytrends.interest_by_region(resolution='COUNTRY', inc_low_vol=True, inc_geo_code=False) | |
| if interest_by_region_df.empty: | |
| gr.Warning(f"找不到關於 '{first_keyword}' 的區域熱度資料。") | |
| region_fig = go.Figure() | |
| else: | |
| # 只取前 20 名 | |
| interest_by_region_df = interest_by_region_df.sort_values(by=first_keyword, ascending=False).head(20) | |
| region_fig = plot_interest_by_region(interest_by_region_df, f"'{first_keyword}' 在全球的區域熱度 Top 20") | |
| return time_fig, region_fig | |
| except Exception as e: | |
| gr.Error(f"查詢時發生錯誤: {e}") | |
| return go.Figure(), go.Figure() | |
| def plot_interest_over_time(df: pd.DataFrame, title: str): | |
| """使用 Plotly 繪製時間趨勢圖。""" | |
| fig = px.line(df, x=df.index, y=df.columns, title=title, labels={'value': '相對熱度', 'date': '日期', 'variable': '關鍵字'}) | |
| fig.update_layout( | |
| template=PLOTLY_TEMPLATE, | |
| paper_bgcolor='rgba(0,0,0,0)', | |
| plot_bgcolor='rgba(0,0,0,0.2)', | |
| legend_title_text='' | |
| ) | |
| return fig | |
| def plot_interest_by_region(df: pd.DataFrame, title: str): | |
| """使用 Plotly 繪製區域熱度長條圖。""" | |
| fig = px.bar(df, x=df.index, y=df.columns[0], title=title, labels={'y': '相對熱度', 'index': '國家/地區'}) | |
| fig.update_layout( | |
| template=PLOTLY_TEMPLATE, | |
| paper_bgcolor='rgba(0,0,0,0)', | |
| plot_bgcolor='rgba(0,0,0,0.2)' | |
| ) | |
| fig.update_xaxes(categoryorder='total descending') | |
| return fig | |
| with gr.Blocks( | |
| theme=gr.themes.Soft( | |
| primary_hue="blue", | |
| secondary_hue="cyan", | |
| font=["Arial", "sans-serif"] | |
| ), | |
| js=""" | |
| function refresh() { | |
| const url = new URL(window.location); | |
| if (url.searchParams.get('__theme') !== 'dark') { | |
| url.searchParams.set('__theme', 'dark'); | |
| window.location.href = url.href; | |
| } | |
| } | |
| """ | |
| ) as app: | |
| gr.Markdown(f""" | |
| <div style='text-align: center; padding: 20px; color: white;'> | |
| <h1 style='font-size: 3em; color: #2563eb;'>📊 關鍵字趨勢分析儀表板</h1> | |
| <p style='font-size: 1.2em; color: #A9A9A9;'>輸入關鍵字,洞察全球搜尋趨勢與市場脈動</p> | |
| <p style='font-size: 0.9em; color: #888;'>Designed by: {DEVELOPER_NAME}</p> | |
| </div> | |
| """) | |
| with gr.Group(): | |
| with gr.Row(): | |
| keywords_input = gr.Textbox( | |
| label="🔍 輸入關鍵字", | |
| placeholder="例如:Bitcoin, Ethereum, Dogecoin (以逗號分隔)", | |
| scale=3 | |
| ) | |
| timeframe_input = gr.Radio( | |
| ["過去 7 天", "過去一個月", "過去三個月", "過去一年"], | |
| label="🗓️ 選擇時間範圍", | |
| value="過去 7 天", | |
| scale=2 | |
| ) | |
| analyze_button = gr.Button("🚀 開始分析", variant="primary") | |
| with gr.Tabs(): | |
| with gr.TabItem("📈 時間趨勢比較"): | |
| time_series_plot = gr.Plot() | |
| with gr.TabItem("🌍 全球區域熱度"): | |
| region_plot = gr.Plot() | |
| gr.Markdown("<p style='text-align: center; color: #888;'>註:區域熱度分析僅針對您輸入的第一個關鍵字。</p>") | |
| analyze_button.click( | |
| fn=analyze_google_trends, | |
| inputs=[keywords_input, timeframe_input], | |
| outputs=[time_series_plot, region_plot] | |
| ) | |
| gr.Examples( | |
| examples=[ | |
| ["Bitcoin, Ethereum", "過去三個月"], | |
| ["穩定幣, Coinbase", "過去一年"], | |
| ["NVIDIA, AMD, TSMC", "過去一個月"], | |
| ], | |
| inputs=[keywords_input, timeframe_input] | |
| ) | |
| app.launch(share=True, debug=False, show_error=True, show_api=False) |