see https://github.com/spesmilo/electrum/issues/5376
crash report for electrum 4.2.1:
```
Traceback (most recent call last):
File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/python-installs/Electrum/kivy/base.py", line 347, in mainloop
File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/python-installs/Electrum/kivy/base.py", line 391, in idle
File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/python-installs/Electrum/kivy/base.py", line 342, in dispatch_input
File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/python-installs/Electrum/kivy/base.py", line 308, in post_dispatch_input
File "kivy/_event.pyx", line 724, in kivy._event.EventDispatcher.dispatch
File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/python-installs/Electrum/kivy/uix/behaviors/button.py", line 179, in on_touch_up
File "kivy/_event.pyx", line 720, in kivy._event.EventDispatcher.dispatch
File "kivy/_event.pyx", line 1263, in kivy._event.EventObservers.dispatch
File "kivy/_event.pyx", line 1147, in kivy._event.EventObservers._dispatch
File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/python-installs/Electrum/kivy/lang/builder.py", line 57, in custom_callback
File "<string>", line 42, in <module>
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/gui/kivy/uix/dialogs/wallets.py", line 70, in cb
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/gui/kivy/main_window.py", line 710, in load_wallet_by_name
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/gui/kivy/main_window.py", line 728, in on_open_wallet
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/gui/kivy/main_window.py", line 691, in on_wizard_success
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/wallet.py", line 3267, in __new__
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/wallet.py", line 3111, in __init__
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/wallet.py", line 2904, in __init__
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/wallet.py", line 288, in __init__
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/address_synchronizer.py", line 97, in __init__
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/wallet.py", line 402, in load_and_cleanup
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/address_synchronizer.py", line 106, in load_and_cleanup
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/util.py", line 439, in <lambda>
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/util.py", line 435, in do_profile
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/address_synchronizer.py", line 432, in load_local_history
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/address_synchronizer.py", line 533, in _add_tx_to_local_history
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/address_synchronizer.py", line 548, in _mark_address_history_changed
File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/other_builds/python3/arm64-v8a__ndk_target_21/python3/Lib/asyncio/locks.py", line 260, in __init__
File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/other_builds/python3/arm64-v8a__ndk_target_21/python3/Lib/asyncio/events.py", line 639, in get_event_loop
RuntimeError: There is no current event loop in thread 'GUI'.
```
see https://github.com/spesmilo/electrum/issues/5376
crash report for electrum 4.2.1:
```
Traceback (most recent call last):
File "/home/user/wspace/electrum/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/Electrum/kivy/base.py", line 347, in mainloop
File "/home/user/wspace/electrum/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/Electrum/kivy/base.py", line 391, in idle
File "/home/user/wspace/electrum/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/Electrum/kivy/base.py", line 342, in dispatch_input
File "/home/user/wspace/electrum/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/Electrum/kivy/base.py", line 308, in post_dispatch_input
File "kivy/_event.pyx", line 724, in kivy._event.EventDispatcher.dispatch
File "/home/user/wspace/electrum/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/Electrum/kivy/uix/behaviors/button.py", line 179, in on_touch_up
File "kivy/_event.pyx", line 720, in kivy._event.EventDispatcher.dispatch
File "kivy/_event.pyx", line 1263, in kivy._event.EventObservers.dispatch
File "kivy/_event.pyx", line 1147, in kivy._event.EventObservers._dispatch
File "/home/user/wspace/electrum/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/Electrum/kivy/lang/builder.py", line 57, in custom_callback
File "<string>", line 39, in <module>
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/gui/kivy/uix/dialogs/settings.py", line 173, in cb
File "kivy/properties.pyx", line 498, in kivy.properties.Property.__set__
File "kivy/properties.pyx", line 545, in kivy.properties.Property.set
File "kivy/properties.pyx", line 600, in kivy.properties.Property.dispatch
File "kivy/_event.pyx", line 1263, in kivy._event.EventObservers.dispatch
File "kivy/_event.pyx", line 1169, in kivy._event.EventObservers._dispatch
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/gui/kivy/main_window.py", line 206, in on_use_gossip
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/network.py", line 368, in start_gossip
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/channel_db.py", line 308, in __init__
File "/home/user/wspace/electrum/.buildozer/android/app/electrum/sql_db.py", line 30, in __init__
File "/home/user/wspace/electrum/.buildozer/android/platform/build-armeabi-v7a/build/other_builds/python3/armeabi-v7a__ndk_target_21/python3/Lib/asyncio/locks.py", line 260, in __init__
File "/home/user/wspace/electrum/.buildozer/android/platform/build-armeabi-v7a/build/other_builds/python3/armeabi-v7a__ndk_target_21/python3/Lib/asyncio/events.py", line 639, in get_event_loop
RuntimeError: There is no current event loop in thread 'GUI'.
```
The call to super was removed in 4efcb53d24 ,
so that LNWallet's taskgroup would not run _maintain_connectivity, AFAICT.
The way it was done meant that "main_loop" itself would not run for LNWallet, only for LNGossip - very confusing.
It is only due to a quirk in the behaviour of TaskGroups that the group "started" at all.
```
Traceback (most recent call last):
File "...\electrum\electrum\gui\qt\main_window.py", line 898, in timer_actions
self.update_wallet()
File "...\electrum\electrum\gui\qt\main_window.py", line 1040, in update_wallet
self.update_tabs()
File "...\electrum\electrum\gui\qt\main_window.py", line 1047, in update_tabs
self.history_model.refresh('update_tabs')
File "...\electrum\electrum\util.py", line 439, in <lambda>
return lambda *args, **kw_args: do_profile(args, kw_args)
File "...\electrum\electrum\util.py", line 435, in do_profile
o = func(*args, **kw_args)
File "...\electrum\electrum\gui\qt\history_list.py", line 275, in refresh
transactions = wallet.get_full_history(
File "...\electrum\electrum\util.py", line 439, in <lambda>
return lambda *args, **kw_args: do_profile(args, kw_args)
File "...\electrum\electrum\util.py", line 435, in do_profile
o = func(*args, **kw_args)
File "...\electrum\electrum\wallet.py", line 947, in get_full_history
lnworker_history = self.lnworker.get_onchain_history() if self.lnworker and include_lightning else {}
File "...\electrum\electrum\lnworker.py", line 911, in get_onchain_history
tx_height = self.lnwatcher.get_tx_height(swap.funding_txid)
AttributeError: 'NoneType' object has no attribute 'get_tx_height'
```
E | gui.qt.ElectrumGui |
Traceback (most recent call last):
File "...\electrum\electrum\gui\qt\__init__.py", line 361, in start_new_window
window = self._create_window_for_wallet(wallet)
File "...\electrum\electrum\gui\qt\__init__.py", line 304, in _create_window_for_wallet
w = ElectrumWindow(self, wallet)
File "...\electrum\electrum\gui\qt\main_window.py", line 223, in __init__
self.send_tab = self.create_send_tab()
File "...\electrum\electrum\gui\qt\main_window.py", line 1537, in create_send_tab
self.invoice_list = InvoiceList(self)
File "...\electrum\electrum\gui\qt\invoice_list.py", line 76, in __init__
self.update()
File "...\electrum\electrum\gui\qt\invoice_list.py", line 109, in update
amount = item.get_amount_sat()
File "...\electrum\electrum\invoices.py", line 158, in get_amount_sat
return int(amount_msat / 1000)
TypeError: unsupported operand type(s) for /: 'str' and 'int'
- show payment options in tabs: URI, Address or Lightning
- use vertical tabs to save space
- switch between QR and text views
- open standalone QR window through menu, instead of clicking on QR code
If I use apt on ubuntu to install python3-pyqt5 and then remove it, it leaves an empty namespace:
```
$ python3
Python 3.8.10 (default, Mar 15 2022, 12:22:08)
[GCC 9.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import PyQt5
>>> import PyQt5.QtGui
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'PyQt5.QtGui'
>>> PyQt5
<module 'PyQt5' (namespace)>
```
After some consideration I am fairly certain there is no need to take
wallet.lock in `is_up_to_date()`. Any caller that might want some kind
of guarantees re the value returned by is_up_to_date() would need to
enforce them itself by e.g. taking wallet.lock around its critical code
block. That is, even if is_up_to_date() itself takes the lock, between
the call returning and the caller reading the value there could still
have been a race.
Also, the GUI was directly accessing the field already.
note: `pip install ".[crypto]"` needs quotes on macOS, at least in the default `zsh` shell.
The quotes are not needed on Ubuntu using bash, or on Windows using powershell.
```
user@users-iMac electrum % python3 -m pip install --user -e .[crypto]
zsh: no matches found: .[crypto]
```
