tkinterとargpurse

前回のプログラムにargpurseによるオプションの追加，GUIによるファイル・フォルダの選択を拡張しました．

PDFRename.py

import os
from os.path import expanduser
import argparse
import tkinter.filedialog
from pdfminer.pdfparser import PDFParser
from pdfminer.pdfdocument import PDFDocument
from pdfminer.pdfpage import PDFPage
from pdfminer.pdfpage import PDFTextExtractionNotAllowed
from pdfminer.pdfinterp import PDFResourceManager
from pdfminer.pdfinterp import PDFPageInterpreter
from pdfminer.converter import PDFPageAggregator
from pdfminer.layout import LAParams, LTContainer, LTTextLine

def get_objs(layout, results):
    if not isinstance(layout, LTContainer):
        return
    for obj in layout:
        if isinstance(obj, LTTextLine):
            results.append({'text': obj.get_text(), 'height': obj.height})
        get_objs(obj, results)


def get_title(path):
    with open(path, "rb") as f:
        parser = PDFParser(f)
        document = PDFDocument(parser)
        laparams = LAParams(all_texts=True)
        rsrcmgr = PDFResourceManager()
        device = PDFPageAggregator(rsrcmgr, laparams=laparams)
        interpreter = PDFPageInterpreter(rsrcmgr, device)
        page = next(PDFPage.create_pages(document)) #１ページ目
        interpreter.process_page(page)
        layout = device.get_result()
        results = []
        get_objs(layout, results)
    f.close()
    if results:
        title = max(results, key=lambda x:x.get('height'))
        return title.get('text').strip()
    raise OSError


def main(path):
    try:
        os.rename(path, "{}/{}.pdf".format(os.path.dirname(path), get_title(path)))
        print("PDF Rename Success:{}".format(path))
    except OSError:
        print("PDF Load ERROR:{}".format(path))


if __name__ == '__main__':
    parser = argparse.ArgumentParser(description='')
    parser.add_argument('-D', '--dir', action='store_true', help='ディレクトリで選択')
    args = parser.parse_args()
    home = expanduser("~")
    iDir = os.path.abspath(os.path.dirname(home))
    if args.dir:
        dir_path = tkinter.filedialog.askdirectory(initialdir = iDir)
        print(dir_path)
        files = os.listdir(dir_path)
        file_paths = [f for f in files if os.path.isfile(os.path.join(dir_path, f))]
        pdf_paths = [f for f in file_paths if f.endswith('.pdf')]
        for pdf_path in pdf_paths:
            main("{}/{}".format(dir_path, pdf_path))
    else:
        fTyp = [("", "*")]
        path = tkinter.filedialog.askopenfilename(filetypes=fTyp, initialdir=iDir)
        main(path)

実行の際に--dirを指定することで，フォルダを選択できます．フォルダ内のpdfファイル全てに対してリネームを行います．