How to use Hebrew font in Kivy? - kivy

Question

I try to use Hebrew font in kivy app and after explore i use LabelBase.register and change my reading of the kv file with encoding='utf-8' but still get error with the line: font_name.
my main.py:
# main.py
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.properties import ObjectProperty
from kivy.uix.popup import Popup
from kivy.uix.label import Label
from kivy.core.text import LabelBase
LabelBase.register(name="Arial", fn_regular="Arial.ttf")
class exist_form_window(Screen):
project_name = ObjectProperty(None)
manage_name = ObjectProperty(None)
def create(self):
if (self.project_name.text):
self.reset()
sm.current = "main"
else:
invalidLogin()
def reset(self):
self.project_name.text =""
self.manage_name.text = ""
class new_form_window(Screen):
project_name = ObjectProperty(None)
manage_name = ObjectProperty(None)
def create(self):
if (self.project_name.text):
self.reset()
sm.current = "main"
else:
invalidLogin()
def reset(self):
self.project_name.text =""
self.manage_name.text = ""
class MainWindow(Screen):
def new_form(self):
sm.current = "new_form"
def exist_form(self):
sm.current = "exist_form"
class WindowManager(ScreenManager):
pass
def invalidLogin():
pop = Popup(title='שגיאה',
content=Label(text='חלק מהערכים חסרים'),
size_hint=(None, None), size=(400, 400))
pop.open()
with open("roniapp.kv", encoding='utf-8') as f:
Builder.load_string(f.read())
sm = WindowManager()
screens = [MainWindow(name="main"),new_form_window(name="new_form"),exist_form_window(name="exist_form")]
for screen in screens:
sm.add_widget(screen)
sm.current = "main"
class MyMainApp(App):
def build(self):
return sm
if __name__ == "__main__":
MyMainApp().run()
My roniapp.kv file:
<MainWindow>:
name: "main"
FloatLayout:
Label:
font_name: 'Arial'
text:"Asad"
font_size: (root.width**2 + root.height**2) / 13**4
pos_hint: {"x":0.1, "top":0.9}
size_hint: 0.35, 0.15
Button:
pos_hint:{"x":0.2, "y": 0.3}
size_hint:0.6,0.2
text: "aaa"
on_release:
root.new_form()
root.manager.transition.direction = "down"
Button:
pos_hint:{"x":0.2, "y": 0.1}
size_hint:0.6,0.2
text: "aaa"
on_release:
root.exist_form()
root.manager.transition.direction = "left"
<new_form_window>:
name: "new_form"
project_name: project_name
manage_name: manage_name
FloatLayout:
Label:
text:"aaa"
font_size: (root.width**2 + root.height**2) / 13**4
pos_hint: {"x":0.1, "top":0.9}
size_hint: 0.35, 0.15
TextInput:
id: project_name
font_size: (root.width**2 + root.height**2) / 13**4
multiline: False
pos_hint: {"x": 0.45 , "top":0.9}
size_hint: 0.4, 0.15
Label:
text:"aaa"
font_size: (root.width**2 + root.height**2) / 13**4
pos_hint: {"x":0.1, "top":0.7}
size_hint: 0.35, 0.15
TextInput:
id: manage_name
font_size: (root.width**2 + root.height**2) / 13**4
multiline: False
pos_hint: {"x": 0.45, "top":0.7}
size_hint: 0.4, 0.15
Button:
pos_hint:{"x":0.2,"y":0.05}
size_hint: 0.6, 0.2
font_size: (root.width**2 + root.height**2) / 13**4
text: "aaa"
on_release:
root.manager.transition.direction = "left"
root.create()
<exist_form_window>:
name: "exist_form"
project_name: project_name
manage_name: manage_name
FloatLayout:
Label:
text:"aaa"
font_size: (root.width**2 + root.height**2) / 13**4
pos_hint: {"x":0.1, "top":0.9}
size_hint: 0.35, 0.15
TextInput:
id: project_name
font_size: (root.width**2 + root.height**2) / 13**4
multiline: False
pos_hint: {"x": 0.45 , "top":0.9}
size_hint: 0.4, 0.15
Label:
text:"aaa"
font_size: (root.width**2 + root.height**2) / 13**4
pos_hint: {"x":0.1, "top":0.7}
size_hint: 0.35, 0.15
TextInput:
id: manage_name
font_size: (root.width**2 + root.height**2) / 13**4
multiline: False
pos_hint: {"x": 0.45, "top":0.7}
size_hint: 0.4, 0.15
Button:
pos_hint:{"x":0.2,"y":0.05}
size_hint: 0.6, 0.2
font_size: (root.width**2 + root.height**2) / 13**4
text: "aaa"
on_release:
root.manager.transition.direction = "left"
root.create()
And get this error:
File "C:\Users\adi\Anaconda3\envs\project_2\lib\site-packages\kivy\lang\parser.py", line 584, in
parse_level
'Invalid data after declaration')
ParserException: Parser: File "<inline>", line 6:
...
4: FloatLayout:
5: Label:
>> 6: font_name: 'Arial'
7: text:"Asad"
8: font_size: (root.width**2 + root.height**2) / 13**4
...
Invalid data after declaration
If it's because i save the kv file with notepad i try with different apps and still get this error.
thanks for help!

Answer 1

The kivy Parser is throwing an error because the code in your .kv file is not formed correctly. Your indentation needs to be fixed. I managed to run your app on my machine by keeping your python code unchanged and replacing your .kv file with the following:
<MainWindow>:
name: "main"
FloatLayout:
Label:
font_name: 'Arial'
text:"Asad"
font_size: (root.width**2 + root.height**2) / 13**4
pos_hint: {"x":0.1, "top":0.9}
size_hint: 0.35, 0.15
Button:
pos_hint:{"x":0.2, "y": 0.3}
size_hint:0.6,0.2
text: "aaa"
on_release:
root.new_form()
root.manager.transition.direction = "down"
Button:
pos_hint:{"x":0.2, "y": 0.1}
size_hint:0.6,0.2
text: "aaa"
on_release:
root.exist_form()
root.manager.transition.direction = "left"
<new_form_window>:
name: "new_form"
project_name: project_name
manage_name: manage_name
FloatLayout:
Label:
text:"aaa"
font_size: (root.width**2 + root.height**2) / 13**4
pos_hint: {"x":0.1, "top":0.9}
size_hint: 0.35, 0.15
TextInput:
id: project_name
font_size: (root.width**2 + root.height**2) / 13**4
multiline: False
pos_hint: {"x": 0.45 , "top":0.9}
size_hint: 0.4, 0.15
Label:
text:"aaa"
font_size: (root.width**2 + root.height**2) / 13**4
pos_hint: {"x":0.1, "top":0.7}
size_hint: 0.35, 0.15
TextInput:
id: manage_name
font_size: (root.width**2 + root.height**2) / 13**4
multiline: False
pos_hint: {"x": 0.45, "top":0.7}
size_hint: 0.4, 0.15
Button:
pos_hint:{"x":0.2,"y":0.05}
size_hint: 0.6, 0.2
font_size: (root.width**2 + root.height**2) / 13**4
text: "aaa"
on_release:
root.manager.transition.direction = "left"
root.create()
<exist_form_window>:
name: "exist_form"
project_name: project_name
manage_name: manage_name
FloatLayout:
Label:
text:"aaa"
font_size: (root.width**2 + root.height**2) / 13**4
pos_hint: {"x":0.1, "top":0.9}
size_hint: 0.35, 0.15
TextInput:
id: project_name
font_size: (root.width**2 + root.height**2) / 13**4
multiline: False
pos_hint: {"x": 0.45 , "top":0.9}
size_hint: 0.4, 0.15
Label:
text:"aaa"
font_size: (root.width**2 + root.height**2) / 13**4
pos_hint: {"x":0.1, "top":0.7}
size_hint: 0.35, 0.15
TextInput:
id: manage_name
font_size: (root.width**2 + root.height**2) / 13**4
multiline: False
pos_hint: {"x": 0.45, "top":0.7}
size_hint: 0.4, 0.15
Button:
pos_hint:{"x":0.2,"y":0.05}
size_hint: 0.6, 0.2
font_size: (root.width**2 + root.height**2) / 13**4
text: "aaa"
on_release:
root.manager.transition.direction = "left"
root.create()
And it works: