Having some trouble with: from kivymd.uix.datatables import MDDataTable: ZeroDivisionError: float division by zero
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Gary Kuipers
Apr 19, 2023, 8:40:43 AM4/19/23
to Kivy users support
Having some trouble with: from kivymd.uix.datatables import MDDataTable
One is that it does not render the table it receives. It produces this error (as can be seen below).
Traceback (most recent call last):
File "/home/gary/PycharmProjects/YSI_Read/test_tables/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/python-installs/manager/arm64-v8a/kivy/core/window/__init__.py", line 1630, in on_draw
ZeroDivisionError: float division by zero
ZeroDivisionError: float division by zero
I do not know if this causes the problem as I have seen it when the does render. This is also confusing because the render is a hit of miss thing.
The second problem is that when it does render it takes about 15 seconds from the time the data is received and the data becomes avaliable on the screen
I think the probem is in my approach o building the table and I could use some help please.
def send_json_on_success(self, req, res):
self.log(4, f"Sender: entering send_json_on_success with res={res}", False)
self.counter_stop()
print(f"Sender: entering send_json_on_success: kk2")
self.root_widget.ids.status.text = 'ok'
print(f"Sender: entering send_json_on_success: kk3")
response = json.loads(res)
print(f"send_json_on_success: response={response}")
self.table_data = response
print(f"send_json_on_success: self.table_data={self.table_data}")
self.main.make_table_widget(self.table_data)
print(f"Sender: entering send_json_on_success: kk4")
This is the construction of the table:
def make_table_widget(self, rows):
self.table_area.clear_widgets() # If a data table exists, delete the datatable widget
self.table = MDDataTable( # Elliot: Create a new datatable with the received dat
pos_hint={'center_x': 0.5, 'center_y': 0.5},
size_hint=(1, 1),
check=False,
use_pagination=True,
rows_num=10,
pagination_menu_height='180dp',
pagination_menu_pos="auto",
background_color=[1, 0, 0, 0.5], # does not work
column_data=[
("", dp(1)),
("Cuando", dp(30), self.sort_on_datetime),
("U", dp(12), self.sort_on_location),
("O", dp(12), self.sort_on_do),
("%", dp(12), self.sort_on_pct),
("T", dp(12), self.sort_on_temp)
],
row_data=rows,
sorted_on="Cuando",
sorted_order="DSC",
)
self.table.bind(on_row_press=self.on_row_press)
self.table.bind(on_check_press=self.on_check_press)
self.table_area.add_widget(self.table) # Elliot: Add the datatable to the widget tree
04-19 05:50:57.143 7448 7499 I python : 4:Sender: entering send_json_on_success with res=[["", "04-18 16:11:39", "p5", " 5.83", " 73.70", " 29.00"], ["", "04-18 16:08:25", "p4", " ", " ", " "], ["", "04-18 16:03:57", "p3", " 9.35", "124.70", " 29.00"], ["", "04-18 16:00:53", "p2", " 3.82", " 51.90", " 30.10"], ["", "04-18 15:58:16", "p1", " 7.18", " 97.90", " 30.10"], ["", "04-18 15:57:07", "NULL", " ", " ", " "], ["", "04-18 15:56:42", "NULL", " ", " ", " "], ["", "04-18 07:14:52", "p5", " 1.99", " 26.00", " 28.00"], ["", "04-18 07:11:30", "p4", " 1.75", " 22.80", " 27.60"], ["", "04-18 07:07:06", "p3", " 5.39", " 68.90", " 26.60"]]
04-19 05:50:57.143 7448 7499 I python : Sender: counter_stop: self.counter=3
04-19 05:50:57.144 7448 7499 I python : Sender: counter_stop: kk2
04-19 05:50:57.144 7448 7499 I python : Sender: entering send_json_on_success: kk2
04-19 05:50:57.144 7448 7499 I python : Sender: entering send_json_on_success: kk3
04-19 05:50:57.144 7448 7499 I python : send_json_on_success: response=[['', '04-18 16:11:39', 'p5', ' 5.83', ' 73.70', ' 29.00'], ['', '04-18 16:08:25', 'p4', ' ', ' ', ' '], ['', '04-18 16:03:57', 'p3', ' 9.35', '124.70', ' 29.00'], ['', '04-18 16:00:53', 'p2', ' 3.82', ' 51.90', ' 30.10'], ['', '04-18 15:58:16', 'p1', ' 7.18', ' 97.90', ' 30.10'], ['', '04-18 15:57:07', 'NULL', ' ', ' ', ' '], ['', '04-18 15:56:42', 'NULL', ' ', ' ', ' '], ['', '04-18 07:14:52', 'p5', ' 1.99', ' 26.00', ' 28.00'], ['', '04-18 07:11:30', 'p4', ' 1.75', ' 22.80', ' 27.60'], ['', '04-18 07:07:06', 'p3', ' 5.39', ' 68.90', ' 26.60']]
04-19 05:50:57.144 7448 7499 I python : send_json_on_success: self.table_data=[['', '04-18 16:11:39', 'p5', ' 5.83', ' 73.70', ' 29.00'], ['', '04-18 16:08:25', 'p4', ' ', ' ', ' '], ['', '04-18 16:03:57', 'p3', ' 9.35', '124.70', ' 29.00'], ['', '04-18 16:00:53', 'p2', ' 3.82', ' 51.90', ' 30.10'], ['', '04-18 15:58:16', 'p1', ' 7.18', ' 97.90', ' 30.10'], ['', '04-18 15:57:07', 'NULL', ' ', ' ', ' '], ['', '04-18 15:56:42', 'NULL', ' ', ' ', ' '], ['', '04-18 07:14:52', 'p5', ' 1.99', ' 26.00', ' 28.00'], ['', '04-18 07:11:30', 'p4', ' 1.75', ' 22.80', ' 27.60'], ['', '04-18 07:07:06', 'p3', ' 5.39', ' 68.90', ' 26.60']]
04-19 05:50:57.370 7448 7499 I python : Sender: entering send_json_on_success: kk4
04-19 05:50:57.370 7448 7499 I python : 4:Sender: entering send_json_on_success with res={"id": 1, "action": "remove_log_data"}
04-19 05:50:57.370 7448 7499 I python : Sender: counter_stop: self.counter=3
04-19 05:50:57.370 7448 7499 I python : Sender: counter_stop: kk2
04-19 05:50:57.370 7448 7499 I python : Sender: entering send_json_on_success: kk2
04-19 05:50:57.370 7448 7499 I python : Sender: entering send_json_on_success: kk3
04-19 05:50:57.371 7448 7499 I python : send_json_on_success: response={'id': 1, 'action': 'remove_log_data'}
04-19 05:50:57.371 7448 7499 I python : send_json_on_success: self.table_data={'id': 1, 'action': 'remove_log_data'}
04-19 05:50:57.792 7448 7499 I python : Sender: entering send_json_on_success: kk4
04-19 05:50:58.902 7448 7499 I python : ZeroDivisionError: float division by zero
04-19 05:50:58.903 7448 7499 I python : Exception ignored in: 'kivy.graphics.vertex_instructions.Line.prebuild_rounded_rectangle'
04-19 05:50:58.903 7448 7499 I python : Traceback (most recent call last):
04-19 05:50:58.903 7448 7499 I python : File "/home/gary/PycharmProjects/YSI_Read/test_tables/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/python-installs/manager/arm64-v8a/kivy/core/window/__init__.py", line 1630, in on_draw
04-19 05:50:58.904 7448 7499 I python : ZeroDivisionError: float division by zero
04-19 05:50:58.911 7448 7499 I python : ZeroDivisionError: float division by zero
04-19 05:50:58.912 7448 7499 I python : Exception ignored in: 'kivy.graphics.vertex_instructions.Line.prebuild_rounded_rectangle'
04-19 05:50:58.912 7448 7499 I python : Traceback (most recent call last):
04-19 05:50:58.912 7448 7499 I python : File "/home/gary/PycharmProjects/YSI_Read/test_tables/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/python-installs/manager/arm64-v8a/kivy/core/window/__init__.py", line 1630, in on_draw
04-19 05:50:58.913 7448 7499 I python : ZeroDivisionError: float division by zero
04-19 05:50:58.920 7448 7499 I python : ZeroDivisionError: float division by zero
04-19 05:50:58.920 7448 7499 I python : Exception ignored in: 'kivy.graphics.vertex_instructions.Line.prebuild_rounded_rectangle'
04-19 05:50:58.921 7448 7499 I python : Traceback (most recent call last):
04-19 05:50:58.921 7448 7499 I python : File "/home/gary/PycharmProjects/YSI_Read/test_tables/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/python-installs/manager/arm64-v8a/kivy/core/window/__init__.py", line 1630, in on_draw
04-19 05:50:58.921 7448 7499 I python : ZeroDivisionError: float division by zero
04-19 05:50:58.929 7448 7499 I python : ZeroDivisionError: float division by zero
04-19 05:50:58.930 7448 7499 I python : Exception ignored in: 'kivy.graphics.vertex_instructions.Line.prebuild_rounded_rectangle'
04-19 05:50:58.930 7448 7499 I python : Traceback (most recent call last):
One is that it does not render the table it receives. It produces this error (as can be seen below).
Traceback (most recent call last):
File "/home/gary/PycharmProjects/YSI_Read/test_tables/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/python-installs/manager/arm64-v8a/kivy/core/window/__init__.py", line 1630, in on_draw
ZeroDivisionError: float division by zero
ZeroDivisionError: float division by zero
I do not know if this causes the problem as I have seen it when the does render. This is also confusing because the render is a hit of miss thing.
The second problem is that when it does render it takes about 15 seconds from the time the data is received and the data becomes avaliable on the screen
I think the probem is in my approach o building the table and I could use some help please.
def send_json_on_success(self, req, res):
self.log(4, f"Sender: entering send_json_on_success with res={res}", False)
self.counter_stop()
print(f"Sender: entering send_json_on_success: kk2")
self.root_widget.ids.status.text = 'ok'
print(f"Sender: entering send_json_on_success: kk3")
response = json.loads(res)
print(f"send_json_on_success: response={response}")
self.table_data = response
print(f"send_json_on_success: self.table_data={self.table_data}")
self.main.make_table_widget(self.table_data)
print(f"Sender: entering send_json_on_success: kk4")
This is the construction of the table:
def make_table_widget(self, rows):
self.table_area.clear_widgets() # If a data table exists, delete the datatable widget
self.table = MDDataTable( # Elliot: Create a new datatable with the received dat
pos_hint={'center_x': 0.5, 'center_y': 0.5},
size_hint=(1, 1),
check=False,
use_pagination=True,
rows_num=10,
pagination_menu_height='180dp',
pagination_menu_pos="auto",
background_color=[1, 0, 0, 0.5], # does not work
column_data=[
("", dp(1)),
("Cuando", dp(30), self.sort_on_datetime),
("U", dp(12), self.sort_on_location),
("O", dp(12), self.sort_on_do),
("%", dp(12), self.sort_on_pct),
("T", dp(12), self.sort_on_temp)
],
row_data=rows,
sorted_on="Cuando",
sorted_order="DSC",
)
self.table.bind(on_row_press=self.on_row_press)
self.table.bind(on_check_press=self.on_check_press)
self.table_area.add_widget(self.table) # Elliot: Add the datatable to the widget tree
04-19 05:50:57.143 7448 7499 I python : 4:Sender: entering send_json_on_success with res=[["", "04-18 16:11:39", "p5", " 5.83", " 73.70", " 29.00"], ["", "04-18 16:08:25", "p4", " ", " ", " "], ["", "04-18 16:03:57", "p3", " 9.35", "124.70", " 29.00"], ["", "04-18 16:00:53", "p2", " 3.82", " 51.90", " 30.10"], ["", "04-18 15:58:16", "p1", " 7.18", " 97.90", " 30.10"], ["", "04-18 15:57:07", "NULL", " ", " ", " "], ["", "04-18 15:56:42", "NULL", " ", " ", " "], ["", "04-18 07:14:52", "p5", " 1.99", " 26.00", " 28.00"], ["", "04-18 07:11:30", "p4", " 1.75", " 22.80", " 27.60"], ["", "04-18 07:07:06", "p3", " 5.39", " 68.90", " 26.60"]]
04-19 05:50:57.143 7448 7499 I python : Sender: counter_stop: self.counter=3
04-19 05:50:57.144 7448 7499 I python : Sender: counter_stop: kk2
04-19 05:50:57.144 7448 7499 I python : Sender: entering send_json_on_success: kk2
04-19 05:50:57.144 7448 7499 I python : Sender: entering send_json_on_success: kk3
04-19 05:50:57.144 7448 7499 I python : send_json_on_success: response=[['', '04-18 16:11:39', 'p5', ' 5.83', ' 73.70', ' 29.00'], ['', '04-18 16:08:25', 'p4', ' ', ' ', ' '], ['', '04-18 16:03:57', 'p3', ' 9.35', '124.70', ' 29.00'], ['', '04-18 16:00:53', 'p2', ' 3.82', ' 51.90', ' 30.10'], ['', '04-18 15:58:16', 'p1', ' 7.18', ' 97.90', ' 30.10'], ['', '04-18 15:57:07', 'NULL', ' ', ' ', ' '], ['', '04-18 15:56:42', 'NULL', ' ', ' ', ' '], ['', '04-18 07:14:52', 'p5', ' 1.99', ' 26.00', ' 28.00'], ['', '04-18 07:11:30', 'p4', ' 1.75', ' 22.80', ' 27.60'], ['', '04-18 07:07:06', 'p3', ' 5.39', ' 68.90', ' 26.60']]
04-19 05:50:57.144 7448 7499 I python : send_json_on_success: self.table_data=[['', '04-18 16:11:39', 'p5', ' 5.83', ' 73.70', ' 29.00'], ['', '04-18 16:08:25', 'p4', ' ', ' ', ' '], ['', '04-18 16:03:57', 'p3', ' 9.35', '124.70', ' 29.00'], ['', '04-18 16:00:53', 'p2', ' 3.82', ' 51.90', ' 30.10'], ['', '04-18 15:58:16', 'p1', ' 7.18', ' 97.90', ' 30.10'], ['', '04-18 15:57:07', 'NULL', ' ', ' ', ' '], ['', '04-18 15:56:42', 'NULL', ' ', ' ', ' '], ['', '04-18 07:14:52', 'p5', ' 1.99', ' 26.00', ' 28.00'], ['', '04-18 07:11:30', 'p4', ' 1.75', ' 22.80', ' 27.60'], ['', '04-18 07:07:06', 'p3', ' 5.39', ' 68.90', ' 26.60']]
04-19 05:50:57.370 7448 7499 I python : Sender: entering send_json_on_success: kk4
04-19 05:50:57.370 7448 7499 I python : 4:Sender: entering send_json_on_success with res={"id": 1, "action": "remove_log_data"}
04-19 05:50:57.370 7448 7499 I python : Sender: counter_stop: self.counter=3
04-19 05:50:57.370 7448 7499 I python : Sender: counter_stop: kk2
04-19 05:50:57.370 7448 7499 I python : Sender: entering send_json_on_success: kk2
04-19 05:50:57.370 7448 7499 I python : Sender: entering send_json_on_success: kk3
04-19 05:50:57.371 7448 7499 I python : send_json_on_success: response={'id': 1, 'action': 'remove_log_data'}
04-19 05:50:57.371 7448 7499 I python : send_json_on_success: self.table_data={'id': 1, 'action': 'remove_log_data'}
04-19 05:50:57.792 7448 7499 I python : Sender: entering send_json_on_success: kk4
04-19 05:50:58.902 7448 7499 I python : ZeroDivisionError: float division by zero
04-19 05:50:58.903 7448 7499 I python : Exception ignored in: 'kivy.graphics.vertex_instructions.Line.prebuild_rounded_rectangle'
04-19 05:50:58.903 7448 7499 I python : Traceback (most recent call last):
04-19 05:50:58.903 7448 7499 I python : File "/home/gary/PycharmProjects/YSI_Read/test_tables/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/python-installs/manager/arm64-v8a/kivy/core/window/__init__.py", line 1630, in on_draw
04-19 05:50:58.904 7448 7499 I python : ZeroDivisionError: float division by zero
04-19 05:50:58.911 7448 7499 I python : ZeroDivisionError: float division by zero
04-19 05:50:58.912 7448 7499 I python : Exception ignored in: 'kivy.graphics.vertex_instructions.Line.prebuild_rounded_rectangle'
04-19 05:50:58.912 7448 7499 I python : Traceback (most recent call last):
04-19 05:50:58.912 7448 7499 I python : File "/home/gary/PycharmProjects/YSI_Read/test_tables/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/python-installs/manager/arm64-v8a/kivy/core/window/__init__.py", line 1630, in on_draw
04-19 05:50:58.913 7448 7499 I python : ZeroDivisionError: float division by zero
04-19 05:50:58.920 7448 7499 I python : ZeroDivisionError: float division by zero
04-19 05:50:58.920 7448 7499 I python : Exception ignored in: 'kivy.graphics.vertex_instructions.Line.prebuild_rounded_rectangle'
04-19 05:50:58.921 7448 7499 I python : Traceback (most recent call last):
04-19 05:50:58.921 7448 7499 I python : File "/home/gary/PycharmProjects/YSI_Read/test_tables/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/python-installs/manager/arm64-v8a/kivy/core/window/__init__.py", line 1630, in on_draw
04-19 05:50:58.921 7448 7499 I python : ZeroDivisionError: float division by zero
04-19 05:50:58.929 7448 7499 I python : ZeroDivisionError: float division by zero
04-19 05:50:58.930 7448 7499 I python : Exception ignored in: 'kivy.graphics.vertex_instructions.Line.prebuild_rounded_rectangle'
04-19 05:50:58.930 7448 7499 I python : Traceback (most recent call last):
Elliot Garbus
Apr 19, 2023, 11:36:10 AM4/19/23
to kivy-...@googlegroups.com
Please share a minimal expectable program, with data, that demonstrates the issue.
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Gary Kuipers
Apr 20, 2023, 8:15:09 AM4/20/23
to Kivy users support
HI Elliot:
The application is for android phone and the data comes from a server. Would you like that code or should I try to extract the code that will run in windows or linux?
Elliot Garbus
Apr 20, 2023, 11:37:40 AM4/20/23
to kivy-...@googlegroups.com
Capture the data and put it in a file or put the data in the code as a literal. I’ll be running the code on Windows.
To view this discussion on the web visit https://groups.google.com/d/msgid/kivy-users/65fa374b-12fb-4a73-a5fc-f814208f3a9dn%40googlegroups.com.
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