提供用户输入 tkinter
providing user input tkinter
我有一个场景，我正在上传一个文本文件，然后提供用户输入，然后根据用户输入进一步处理。
示例文件：
DOWN 07.11.2016 08:21:33 - 07.11.2016 08:22:33
UP 07.11.2016 09:41:07 - 09.11.2016 09:20:33
DOWN 09.11.2016 08:26:33 - 09.11.2016 08:35:33
UP 09.11.2016 08:23:33 - 09.11.2016 08:25:33
DOWN 09.11.2016 08:36:33 - 09.11.2016 08:38:33
DOWN 10.11.2016 08:36:33 - 10.11.2016 08:38:33
代码：
try:
import Tkinter as Tk
import tkFileDialog as fileDialog
except ImportError:
import tkinter as Tk
fileDialog = Tk.filedialog
import datetime
def user_input():
current_date = my_entry.get()
def processText(lines):
total = 0
start = None
for k, line in enumerate(lines):
direction, date1, time1, _, date2, time2 = line.split()
if direction != "Down": continue
if start==None: start = date1 + ' ' + time1
# 1
D1, M1, Y1 = date1.split('.')
h1, m1, s1 = time1.split(':')
# 2
D2, M2, Y2 = date2.split('.')
h2, m2, s2 = time2.split(':')
# Timestamps
t1 = datetime.datetime(*map(int, [Y1, M1, D1, h1, m1, s1])).timestamp()
t2 = datetime.datetime(*map(int, [Y2, M2, D2, h2, m2, s2])).timestamp()
total += (t2-t1)
return total, start
def openFile():
filename = fileDialog.askopenfilename()
fileHandle = open(filename, 'r')
down, start = processText(fileHandle.readlines())
txt = "Total Downtime is {0} min from {1}".format(down//60, start)
textVar.set(txt)
fileHandle.close()
root = Tk.Tk()
button = Tk.Button(root, text="Open", command=openFile)
button.grid(column=1, row=1)
textVar = Tk.StringVar(root)
label = Tk.Label(root, textvariable=textVar)
label.grid(column=1, row=2)
root.mainloop()
上面给出了总停机时间为
的输出
12 min from 07.11.2016 08:21:33
但在这里我试图介绍 DATE 的用户输入，例如，如果我想从 2016 年 11 月 9 日开始停机，那么它应该提示我选择一个日期，输出（总停机时间）应该来自所选日期。
任何帮助都会很棒！！
编辑 1（添加 o/p）：
回溯：
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Program Files (x86)\Python36-32\lib\tkinter\__init__.py", line 1699, in __call__
return self.func(*args)
File "C:/Users/angelina/Desktop/test2/tinkteruser.py", line 34, in read_data
t1 = datetime.datetime.strptime(dt1, "%d.%m.%Y %H:%M:%S")
File "C:\Program Files (x86)\Python36-32\lib\_strptime.py", line 565, in _strptime_datetime
tt, fraction = _strptime(data_string, format)
File "C:\Program Files (x86)\Python36-32\lib\_strptime.py", line 362, in _strptime
(data_string, format))
ValueError: time data 'able 22.06.2017 1' does not match format '%d.%m.%Y %H:%M:%S
您可以读取一次文件并计算不同的日期。
顺便说一句：作为扩展，它可以在 Entry 中获取几个日期（由 space 或逗号分隔）并为每个日期计算 total，或在两个日期范围内计算
在 read_data() 中加载所有数据并使用
转换为日期时间
datetime.datetime.strptime(date1 + ' ' + time1, "%d.%m.%Y %H:%M:%S")
在 calculate 中，它从 Entry 获取数据并使用文件中的数据和条目中的日期执行 processText()。
它将包含数据的字符串从 Entry 转换为 datetime。字符串可能有不正确的日期或格式不正确，所以我使用 try/except.
它使用t1 <= selected_date来比较两个datetime。
它使用 (t2-t1).seconds 获取两个日期之间的秒数（不使用 timestamp()）。它甚至可以在 read_data().
中执行此操作
完整代码：
问题可能是 except Exception as ex:，这在 Python 2.
中是不正确的
try:
import Tkinter as Tk
import tkFileDialog as fileDialog
except ImportError:
import tkinter as Tk
import tkinter.filedialog as fileDialog
import datetime
def read_data():
'''
Read data from file and convert to list with datetime
which can be used to calculate time and display.
'''
global data
filename = fileDialog.askopenfilename()
if filename:
# read all lines
with open(filename) as fileHandle:
lines = fileHandle.readlines()
# convert to `datetime` (not `timestamp`)
data = []
for line in lines:
direction, date1, time1, _, date2, time2 = line.split()
t1 = datetime.datetime.strptime(date1 + ' ' + time1, "%d.%m.%Y %H:%M:%S")
t2 = datetime.datetime.strptime(date2 + ' ' + time2, "%d.%m.%Y %H:%M:%S")
data.append([direction, t1, t2])
print(data)
def processText(lines, selected_date):
total = 0
start = None
# if there is `selected_date` then convert to `datetime`
if selected_date:
try:
selected_date = datetime.datetime.strptime(selected_date, "%d.%m.%Y")
except Exception as ex:
print("ERROR:", ex)
selected_date = None
# calculate time
for direction, t1, t2 in lines:
if direction == "DOWN":
# if `selected_date` then filter times
if selected_date and t1 <= selected_date:
continue
if not start:
start = t1
total += (t2-t1).seconds//60
return total, start.strftime("%d.%m.%Y %H:%M:%S")
def calculate():
current_date = entry.get().strip()
down, start = processText(data, current_date)
txt = "Total Downtime is {0} min from {1}".format(down, start)
textVar.set(txt)
# --- main ---
data = None # to keep data from file
# -
root = Tk.Tk()
button = Tk.Button(root, text="Open", command=read_data)
button.grid(column=1, row=1)
textVar = Tk.StringVar(root)
label = Tk.Label(root, textvariable=textVar)
label.grid(column=1, row=2)
entry = Tk.Entry(root)
entry.grid(column=1, row=3)
button2 = Tk.Button(root, text="Calculate", command=calculate)
button2.grid(column=1, row=4)
root.mainloop()
编辑： 其他更改（保留以前的版本进行比较）
现在它在 read_data 中计算 (t2-t1).seconds 并将其保存在 data
中
它在添加所有秒数后转换为分钟，因此它可以多出几分钟。
现在可以计算条目中的多个日期（以逗号分隔）。
它还使用 slicing 从行中获取元素。
我假设所有数据的格式都与示例文件中的格式相同。
DOWN 07.11.2016 08:21:33 - 07.11.2016 08:22:33
UP 07.11.2016 09:41:07 - 09.11.2016 09:20:33
DOWN 09.11.2016 08:26:33 - 09.11.2016 08:35:33
UP 09.11.2016 08:23:33 - 09.11.2016 08:25:33
DOWN 09.11.2016 08:36:33 - 09.11.2016 08:38:33
DOWN 10.11.2016 08:36:33 - 10.11.2016 08:38:33
编辑： 似乎文件的值可以比 "DOWN" 和 "UP " 更长，所以切片不起作用所以我再次使用 split()而不是 slicing
try:
import Tkinter as Tk
import tkFileDialog as fileDialog
except ImportError:
import tkinter as Tk
import tkinter.filedialog as fileDialog
import datetime
def read_data():
'''
Read data from file and convert to list with datetime
which can be used to calculate time and display.
'''
global data
filename = fileDialog.askopenfilename()
if filename:
# read all lines
with open(filename) as fileHandle:
lines = fileHandle.readlines()
# convert to `datetime` (not `timestamp`)
data = []
for line in lines:
#direction = line[:4].strip()
#dt1 = line[5:24]
#dt2 = line[27:46]
direction, d1, t1, _, d2, t2 = line.split()
dt1 = d1 + ' ' + t1
dt2 = d2 + ' ' + t2
t1 = datetime.datetime.strptime(dt1, "%d.%m.%Y %H:%M:%S")
t2 = datetime.datetime.strptime(dt2, "%d.%m.%Y %H:%M:%S")
seconds = (t2-t1).seconds
data.append([direction, t1, t2, seconds])
print(data)
def processText(lines, selected_date):
total = 0
start = None
print(selected_date)
# if there is `selected_date` then convert to `datetime`
if selected_date:
try:
selected_date = datetime.datetime.strptime(selected_date, "%d.%m.%Y")
except AttributeError as ex:
print("ERROR:", ex)
selected_date = None
# calculate time
for direction, t1, t2, seconds in lines:
if direction == "DOWN":
# if `selected_date` then filter times
if selected_date and t1 <= selected_date:
continue
if not start:
start = t1.strftime("%d.%m.%Y %H:%M:%S")
total += seconds
# convert to minutes after summing all second
total = total//60
return total, start
def calculate():
all_dates = entry.get().split(',')
print(all_dates)
all_dates = [date.strip() for date in all_dates]
txt = ''
for current_date in all_dates:
down, start = processText(data, current_date)
txt += "Total Downtime is {0} min from {1}\n".format(down, start)
textVar.set(txt)
# --- main ---
data = None # to keep data from file
# -
root = Tk.Tk()
button = Tk.Button(root, text="Open", command=read_data)
button.grid(column=1, row=1)
textVar = Tk.StringVar(root)
label = Tk.Label(root, textvariable=textVar)
label.grid(column=1, row=2)
entry = Tk.Entry(root)
entry.grid(column=1, row=3)
button2 = Tk.Button(root, text="Calculate", command=calculate)
button2.grid(column=1, row=4)
root.mainloop()
我有一个场景，我正在上传一个文本文件，然后提供用户输入，然后根据用户输入进一步处理。
示例文件：
DOWN 07.11.2016 08:21:33 - 07.11.2016 08:22:33
UP 07.11.2016 09:41:07 - 09.11.2016 09:20:33
DOWN 09.11.2016 08:26:33 - 09.11.2016 08:35:33
UP 09.11.2016 08:23:33 - 09.11.2016 08:25:33
DOWN 09.11.2016 08:36:33 - 09.11.2016 08:38:33
DOWN 10.11.2016 08:36:33 - 10.11.2016 08:38:33
代码：
try:
import Tkinter as Tk
import tkFileDialog as fileDialog
except ImportError:
import tkinter as Tk
fileDialog = Tk.filedialog
import datetime
def user_input():
current_date = my_entry.get()
def processText(lines):
total = 0
start = None
for k, line in enumerate(lines):
direction, date1, time1, _, date2, time2 = line.split()
if direction != "Down": continue
if start==None: start = date1 + ' ' + time1
# 1
D1, M1, Y1 = date1.split('.')
h1, m1, s1 = time1.split(':')
# 2
D2, M2, Y2 = date2.split('.')
h2, m2, s2 = time2.split(':')
# Timestamps
t1 = datetime.datetime(*map(int, [Y1, M1, D1, h1, m1, s1])).timestamp()
t2 = datetime.datetime(*map(int, [Y2, M2, D2, h2, m2, s2])).timestamp()
total += (t2-t1)
return total, start
def openFile():
filename = fileDialog.askopenfilename()
fileHandle = open(filename, 'r')
down, start = processText(fileHandle.readlines())
txt = "Total Downtime is {0} min from {1}".format(down//60, start)
textVar.set(txt)
fileHandle.close()
root = Tk.Tk()
button = Tk.Button(root, text="Open", command=openFile)
button.grid(column=1, row=1)
textVar = Tk.StringVar(root)
label = Tk.Label(root, textvariable=textVar)
label.grid(column=1, row=2)
root.mainloop()
上面给出了总停机时间为
的输出12 min from 07.11.2016 08:21:33
但在这里我试图介绍 DATE 的用户输入，例如，如果我想从 2016 年 11 月 9 日开始停机，那么它应该提示我选择一个日期，输出（总停机时间）应该来自所选日期。
任何帮助都会很棒！！
编辑 1（添加 o/p）：
回溯：
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Program Files (x86)\Python36-32\lib\tkinter\__init__.py", line 1699, in __call__
return self.func(*args)
File "C:/Users/angelina/Desktop/test2/tinkteruser.py", line 34, in read_data
t1 = datetime.datetime.strptime(dt1, "%d.%m.%Y %H:%M:%S")
File "C:\Program Files (x86)\Python36-32\lib\_strptime.py", line 565, in _strptime_datetime
tt, fraction = _strptime(data_string, format)
File "C:\Program Files (x86)\Python36-32\lib\_strptime.py", line 362, in _strptime
(data_string, format))
ValueError: time data 'able 22.06.2017 1' does not match format '%d.%m.%Y %H:%M:%S
您可以读取一次文件并计算不同的日期。
顺便说一句：作为扩展，它可以在 Entry 中获取几个日期（由 space 或逗号分隔）并为每个日期计算 total，或在两个日期范围内计算
在 read_data() 中加载所有数据并使用
datetime.datetime.strptime(date1 + ' ' + time1, "%d.%m.%Y %H:%M:%S")
在 calculate 中，它从 Entry 获取数据并使用文件中的数据和条目中的日期执行 processText()。
它将包含数据的字符串从 Entry 转换为 datetime。字符串可能有不正确的日期或格式不正确，所以我使用 try/except.
它使用t1 <= selected_date来比较两个datetime。
它使用 (t2-t1).seconds 获取两个日期之间的秒数（不使用 timestamp()）。它甚至可以在 read_data().
完整代码：
问题可能是 except Exception as ex:，这在 Python 2.
try:
import Tkinter as Tk
import tkFileDialog as fileDialog
except ImportError:
import tkinter as Tk
import tkinter.filedialog as fileDialog
import datetime
def read_data():
'''
Read data from file and convert to list with datetime
which can be used to calculate time and display.
'''
global data
filename = fileDialog.askopenfilename()
if filename:
# read all lines
with open(filename) as fileHandle:
lines = fileHandle.readlines()
# convert to `datetime` (not `timestamp`)
data = []
for line in lines:
direction, date1, time1, _, date2, time2 = line.split()
t1 = datetime.datetime.strptime(date1 + ' ' + time1, "%d.%m.%Y %H:%M:%S")
t2 = datetime.datetime.strptime(date2 + ' ' + time2, "%d.%m.%Y %H:%M:%S")
data.append([direction, t1, t2])
print(data)
def processText(lines, selected_date):
total = 0
start = None
# if there is `selected_date` then convert to `datetime`
if selected_date:
try:
selected_date = datetime.datetime.strptime(selected_date, "%d.%m.%Y")
except Exception as ex:
print("ERROR:", ex)
selected_date = None
# calculate time
for direction, t1, t2 in lines:
if direction == "DOWN":
# if `selected_date` then filter times
if selected_date and t1 <= selected_date:
continue
if not start:
start = t1
total += (t2-t1).seconds//60
return total, start.strftime("%d.%m.%Y %H:%M:%S")
def calculate():
current_date = entry.get().strip()
down, start = processText(data, current_date)
txt = "Total Downtime is {0} min from {1}".format(down, start)
textVar.set(txt)
# --- main ---
data = None # to keep data from file
# -
root = Tk.Tk()
button = Tk.Button(root, text="Open", command=read_data)
button.grid(column=1, row=1)
textVar = Tk.StringVar(root)
label = Tk.Label(root, textvariable=textVar)
label.grid(column=1, row=2)
entry = Tk.Entry(root)
entry.grid(column=1, row=3)
button2 = Tk.Button(root, text="Calculate", command=calculate)
button2.grid(column=1, row=4)
root.mainloop()
编辑： 其他更改（保留以前的版本进行比较）
现在它在 read_data 中计算 (t2-t1).seconds 并将其保存在 data
它在添加所有秒数后转换为分钟，因此它可以多出几分钟。
现在可以计算条目中的多个日期（以逗号分隔）。
它还使用 slicing 从行中获取元素。
我假设所有数据的格式都与示例文件中的格式相同。
DOWN 07.11.2016 08:21:33 - 07.11.2016 08:22:33
UP 07.11.2016 09:41:07 - 09.11.2016 09:20:33
DOWN 09.11.2016 08:26:33 - 09.11.2016 08:35:33
UP 09.11.2016 08:23:33 - 09.11.2016 08:25:33
DOWN 09.11.2016 08:36:33 - 09.11.2016 08:38:33
DOWN 10.11.2016 08:36:33 - 10.11.2016 08:38:33
编辑： 似乎文件的值可以比 "DOWN" 和 "UP " 更长，所以切片不起作用所以我再次使用 split()而不是 slicing
try:
import Tkinter as Tk
import tkFileDialog as fileDialog
except ImportError:
import tkinter as Tk
import tkinter.filedialog as fileDialog
import datetime
def read_data():
'''
Read data from file and convert to list with datetime
which can be used to calculate time and display.
'''
global data
filename = fileDialog.askopenfilename()
if filename:
# read all lines
with open(filename) as fileHandle:
lines = fileHandle.readlines()
# convert to `datetime` (not `timestamp`)
data = []
for line in lines:
#direction = line[:4].strip()
#dt1 = line[5:24]
#dt2 = line[27:46]
direction, d1, t1, _, d2, t2 = line.split()
dt1 = d1 + ' ' + t1
dt2 = d2 + ' ' + t2
t1 = datetime.datetime.strptime(dt1, "%d.%m.%Y %H:%M:%S")
t2 = datetime.datetime.strptime(dt2, "%d.%m.%Y %H:%M:%S")
seconds = (t2-t1).seconds
data.append([direction, t1, t2, seconds])
print(data)
def processText(lines, selected_date):
total = 0
start = None
print(selected_date)
# if there is `selected_date` then convert to `datetime`
if selected_date:
try:
selected_date = datetime.datetime.strptime(selected_date, "%d.%m.%Y")
except AttributeError as ex:
print("ERROR:", ex)
selected_date = None
# calculate time
for direction, t1, t2, seconds in lines:
if direction == "DOWN":
# if `selected_date` then filter times
if selected_date and t1 <= selected_date:
continue
if not start:
start = t1.strftime("%d.%m.%Y %H:%M:%S")
total += seconds
# convert to minutes after summing all second
total = total//60
return total, start
def calculate():
all_dates = entry.get().split(',')
print(all_dates)
all_dates = [date.strip() for date in all_dates]
txt = ''
for current_date in all_dates:
down, start = processText(data, current_date)
txt += "Total Downtime is {0} min from {1}\n".format(down, start)
textVar.set(txt)
# --- main ---
data = None # to keep data from file
# -
root = Tk.Tk()
button = Tk.Button(root, text="Open", command=read_data)
button.grid(column=1, row=1)
textVar = Tk.StringVar(root)
label = Tk.Label(root, textvariable=textVar)
label.grid(column=1, row=2)
entry = Tk.Entry(root)
entry.grid(column=1, row=3)
button2 = Tk.Button(root, text="Calculate", command=calculate)
button2.grid(column=1, row=4)
root.mainloop()