!!!Python ファイルを分割する
[Python][PyQt]


{{ref_image py_file_split.jpg}}

 # -*- encoding:utf-8 -*-
 import sys
 import re
 import os
 from datetime import datetime
 from PyQt4 import QtGui as gui
 from PyQt4 import QtCore as core
 import re
 import codecs
 
 class MainWindow(gui.QWidget):
     def __init__(self):
         super(MainWindow, self).__init__()
         self.initUi()
 
     def initUi(self):
         grid = gui.QGridLayout()
 
         form = gui.QFormLayout()
         self.txtSepFile = gui.QLineEdit()
         btnSepFile = gui.QPushButton(u'...')
         btnSepFile.setMaximumWidth(40)
         btnSepFile.clicked.connect(self.chooseDbFile)
         boxSepFile = gui.QHBoxLayout()
         boxSepFile.addWidget(self.txtSepFile)
         boxSepFile.addWidget(btnSepFile)
         form.addRow(u'対象ファイル', boxSepFile)
 
         self.txtLimit = gui.QLineEdit()
         self.txtLimit.setText(u'10000')
         self.txtLimit.setAlignment(core.Qt.AlignRight)
         self.txtLimit.setFixedWidth(100)
         form.addRow(u'行数', self.txtLimit)
 
         encodes = ('shift_jis','cp932','utf-8')
 
         self.cmbSrcEncode = gui.QComboBox(self)
         self.cmbSrcEncode.addItems(encodes)
         self.cmbSrcEncode.setFixedWidth(150)
         boxSrcEncode = gui.QHBoxLayout()
         boxSrcEncode.addWidget(self.cmbSrcEncode)
         form.addRow(u'対象エンコード', boxSrcEncode)
 
         boxCtrl = gui.QHBoxLayout()
         btnExec = gui.QPushButton(u'実行')
         btnExec.clicked.connect(self.doExec)
         boxCtrl.addWidget(btnExec)
 
         msgCtrl = gui.QVBoxLayout()
         msgCtrl.addWidget(gui.QLabel(u"テキストファイルを指定行数で分割します。"))
 
         grid.addLayout(msgCtrl,0,0)
         grid.addLayout(form,1,0)
         grid.addLayout(boxCtrl,2,0)
         self.setLayout(grid)
         self.resize(400,100)
 
         self.setWindowTitle(u"テキストファイル分割")
         self.show()
 
     def doExec(self):
         in_file = unicode(self.txtSepFile.text())
 
         in_codec = unicode(self.cmbSrcEncode.currentText())
 
         s_limit = unicode(self.txtLimit.text())
         if not unicode.isnumeric(s_limit):
             gui.QMessageBox.warning(self,"Completed",u"行数の指定が不正です。")
             return
 
         self.separateFile(in_file, in_codec, int(s_limit))
 
         gui.QMessageBox.information(self,"Completed",u"作成完了しました。",gui.QMessageBox.Ok)
 
     def chooseDbFile(self):
         dialog = gui.QFileDialog()
         dialog.setFileMode(gui.QFileDialog.ExistingFile)
         if dialog.exec_():
             fileNames = dialog.selectedFiles()
             for f in fileNames:
                 self.txtSepFile.setText(f)
                 return
         return self.txtSepFile.setText('')
 
 
     def separateFile(self, in_file, in_codec, limit):
 
         extention = ""
         out_file = in_file
         try:
             in_sep_period = in_file.split(".")
             extention = in_sep_period[1]
             out_file = ".".join(in_sep_period[:-1])
         except IndexError:
             pass
 
         in_fd = None
         out_fd = None
         try:
             sufix = 0
             line = 0
             in_fd = codecs.open(in_file, 'r', in_codec)
             for l in in_fd:
                 if line == 0:
                     if out_fd:
                         out_fd.close()
                     sufix = sufix + 1
                     outf = out_file + '_%05d.%s' % (sufix, extention)
                     out_fd = codecs.open(outf, 'w', in_codec)
                     print "%s..." % (outf)
 
                 out_fd.write(l)
 
                 # print l
                 line = line + 1
                 if line >= limit:
                     line = 0
         except UnicodeDecodeError:
             gui.QMessageBox.warning(self,"Completed",u"エンコードエラー。エンコードの指定を確認してください。")
             if out_fd:
                 out_fd.close()
             if in_fd:
                 in_fd.close()
         pass
 
 
 def main():
     app = gui.QApplication(sys.argv)
     mainWin = MainWindow()
     sys.exit(app.exec_())
 
 if __name__ == '__main__':
     main()