python - 打开文件对话框重复运行两次
问题描述
我尝试QFileDialog在 PyQt5 中为 pandas 数据框打开两种不同类型的文件，但在执行之前它会为每个文件重复打开两次。但是，当我仅使用特定文件“文件名”时，它将直接执行一次。
它使用以下代码打开了两次：
class dataframe(QWidget):
def __init__(self, parent=None):
super(dataframe, self).__init__(parent)
layout = QVBoxLayout(self)
canvas = mycanvas(self)
layout.addWidget(canvas)
self.btn3 = QPushButton("Plot")
self.btn3.clicked.connect(canvas.PlotChart)
layout.addWidget(self.btn3)
def input(self):
lasdata = QFileDialog.getOpenFileName(self, 'Open LAS', r'data/', "LAS files (*.las)")[0]
textdata = QFileDialog.getOpenFileName(self, 'Open Text', r'data/', "Text files (*.txt)")[0]
l = lasio.read(f"{lasdata}")
data = l.df()
data = data.replace('-999.00000', np.nan)
data.index.names = ['DEPT']
w = l.well.WELL.value
data['WELL'] = w
text = pd.read_csv(f"{textdata}", sep='\t')
text_unit = text['RU'].unique()
data_w = pd.DataFrame()
for i in range(len(text_unit)):
top = text.iloc[i]['D']
if i < len(text_unit) - 1:
bottom = text.iloc[i + 1]['D']
else:
bottom = int(round(data.tail(1).index.item()))
data_int = data.iloc[top:bottom, :]
data_int['INT'] = text.iloc[i]['RU']
data_w = data_w.append(data_int)
data = data_w
return w, data
def det(self, gr):
w, data = dataframe.input(self)
GR = data.iloc[:, gr]
conditions = [
(GR <= 60),
(GR >= 60)]
lit = ['A', 'B']
data['L'] = np.select(conditions, lit, default='Undefined')
return data
def calculation(self):
w, data = dataframe.input(self)
data = dataframe.det(self, 1)
data_well = pd.DataFrame()
data_int = pd.DataFrame()
F_w = pd.DataFrame()
Fa = pd.DataFrame()
text_unit = data['INT'].unique()
for i in range(len(text_unit)):
data_int = data.where(data['INT'] == text_unit[i]).dropna()
F_percent = data_int['L'].value_counts(normalize=True) * 100
F_percent = F_percent.sort_index()
F_percent['INT'] = text_unit[i]
F_percent = pd.DataFrame(F_percent).transpose()
F_w = F_w.append(F_percent)
F_w['W'] = w
Fa = Fa.append(F_w)
F_w = pd.DataFrame()
Fa = Fa.reset_index()
Fa = Fa.fillna(0)
return Fa
class mycanvas(FigureCanvas):
def __init__(self, parent=None, dpi=120):
self.fig = plt.Figure(dpi=dpi)
FigureCanvas.__init__(self, self.fig)
def PlotChart(self):
outputs = dataframe.calculation(self) # .where(Fa['W']==well)
int = outputs['INT'].unique()
self.axes = self.fig.add_subplot(111)
self.axes.set_title("AA")
outputs.plot.barh(x='INT', stacked=True, ax=self.axes)
self.axes.set_yticks(range(len('INT')), 'INT')
self.draw()
if __name__ == '__main__':
app = QApplication(sys.argv)
window = dataframe()
window.show()
sys.exit(app.exec_())
但是，它使用以下代码直接执行一次：
def Input(self):
lasdata = 'data/AA.las'
textdata = 'data/AATEXT.txt'
l = lasio.read(lasdata)
data = l.df()
text = pd.read_csv(textdata, sep='\t')
文件对话框代码是否有问题，就像它成功执行一次的较低代码（直接名称）一样，但是在读取下一个代码之前它打开了两次文件对话框。我需要制作 GUI 应用程序，所以我需要使用文件对话框。
这是带有两个按钮的代码的一部分：
self.btn1 = QPushButton("LAS File")
self.btn1.clicked.connect(self.las)
self.btn2 = QPushButton("Text File")
self.btn2.clicked.connect(self.text)
self.btn3 = QPushButton("Plot")
self.btn3.clicked.connect(canvas.PlotChart)
layout.addWidget(self.btn1)
layout.addWidget(self.btn2)
layout.addWidget(self.btn3)
def las(self):
self.lasfile = QFileDialog.getOpenFileName(self, 'Open LAS', r'data/', "LAS files (*.las)")[0]
def text(self):
self.textfile = QFileDialog.getOpenFileName(self, 'Open Text', r'data/', "Text files (*.txt)")[0]
def input(self):
lasdata = self.lasfile
textdata = self.textfile
l = lasio.read(f"{lasdata}")
data = l.df()
data = data.replace('-999.00000', np.nan)
data.index.names = ['DEPT']
w = l.well.WELL.value
data['WELL'] = w
text = pd.read_csv(f"{textdata}", sep='\t')
text_unit = text['RU'].unique()
我试着把它做成两个按钮，但无法打开或退出无法执行。
below is one of the text format
WN RU D
AA SR 19
AA TF 50
AA PSU 1700