this locator is not located on the event detail page:
the locator for the _edit_event_button is(i found 2 optimal locators for this):
```
.events-main > div.row:nth-child(1) > div:nth-child(2) >a:nth-child(3)
```

or
```
a[href$="/edit/"]
```
I recommend using the first one, because the second one points to 2 elements on the page, but I also can be used since find_element will return the first element found on the page(the correct one).