Build a Python-based journaling app

Here is a complete Python-based journaling app using a simple file-based system and a Tkinter GUI interface for usability. This app allows users to create, view, and search journal entries by date or keywords.

python
CopyEdit
import os
import tkinter as tk
from tkinter import messagebox, filedialog, simpledialog
from datetime import datetime

# Directory where journal entries are stored
JOURNAL_DIR = "journal_entries"

if not os.path.exists(JOURNAL_DIR):
    os.makedirs(JOURNAL_DIR)

def save_entry():
    date_str = datetime.now().strftime("%Y-%m-%d_%H-%M-%S")
    filename = os.path.join(JOURNAL_DIR, f"{date_str}.txt")
    content = text_entry.get("1.0", tk.END).strip()

    if not content:
        messagebox.showwarning("Empty Entry", "Journal entry is empty.")
        return

    with open(filename, "w", encoding="utf-8") as f:
        f.write(content)
    messagebox.showinfo("Saved", f"Journal saved as {filename}")
    text_entry.delete("1.0", tk.END)

def load_entry():
    file_path = filedialog.askopenfilename(initialdir=JOURNAL_DIR, title="Select Entry",
                                           filetypes=(("Text Files", "*.txt"), ("All Files", "*.*")))
    if file_path:
        with open(file_path, "r", encoding="utf-8") as f:
            content = f.read()
        text_entry.delete("1.0", tk.END)
        text_entry.insert(tk.END, content)

def search_entries():
    keyword = simpledialog.askstring("Search", "Enter keyword to search:")
    if not keyword:
        return

    results = []
    for filename in os.listdir(JOURNAL_DIR):
        path = os.path.join(JOURNAL_DIR, filename)
        with open(path, "r", encoding="utf-8") as f:
            content = f.read()
            if keyword.lower() in content.lower():
                results.append(filename)

    if results:
        result_str = "n".join(results)
        messagebox.showinfo("Search Results", f"Entries containing '{keyword}':n{result_str}")
    else:
        messagebox.showinfo("Search Results", f"No entries found containing '{keyword}'.")

def list_all_entries():
    entries = os.listdir(JOURNAL_DIR)
    if entries:
        entry_list = "n".join(sorted(entries))
        messagebox.showinfo("All Entries", entry_list)
    else:
        messagebox.showinfo("All Entries", "No journal entries found.")

# GUI setup
root = tk.Tk()
root.title("Python Journal App")
root.geometry("600x500")

frame = tk.Frame(root)
frame.pack(pady=10)

text_entry = tk.Text(frame, height=20, width=70, wrap=tk.WORD)
text_entry.pack()

button_frame = tk.Frame(root)
button_frame.pack(pady=10)

tk.Button(button_frame, text="Save Entry", command=save_entry, width=15).grid(row=0, column=0, padx=5)
tk.Button(button_frame, text="Load Entry", command=load_entry, width=15).grid(row=0, column=1, padx=5)
tk.Button(button_frame, text="Search Entries", command=search_entries, width=15).grid(row=0, column=2, padx=5)
tk.Button(button_frame, text="List All Entries", command=list_all_entries, width=15).grid(row=0, column=3, padx=5)

root.mainloop()

Features:

• Save Entry: Stores a timestamped text file.

• Load Entry: Loads existing entries.

• Search Entries: Finds entries containing keywords.

• List All Entries: Displays all saved entries.

Requirements:

• Python 3.x

• No external packages—standard library only.

You can expand it further with:

• Tagging or mood tracking

• Cloud backup

• Markdown support

• Password protection

Let me know if you want a terminal-only version or database integration.