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I am trying to figure out why Python is throwing a "Can't assign to function call" error for my last line of code. It goes away when I take out everything after the first comma. Is there a better way syntactically to do this?
class UserProperty(models.Model):
state = models.ManyToManyField(), USState, blank=True, null=True
You should put parenthesis around all the parameters like this:
class UserProperty(models.Model):
state = models.ManyToManyField(USState, blank=True, null=True)
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This happens almost every time I type print("something here"): it puts this error message box (and yes I've tried quotation marks instead of quote marks).
Currently you have
print('hello' +inp 'how is your day?')
You might want to place another + sign on the other end of your input variable.
print('hello' +inp+ 'how is your day?')
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Consider the following:
class car:
pass
tesla=car()
When I do type(tesla), this gives __main__.car, as I expect.
But if I have:
class car:
pass
tesla=car
then type(car) gives type.
From another post here on SO, it really shouldn't matter how I instantiate the class. But clearly as we see here, the type of the object is different. I am an absolute beginner to python, could you please let me know what is going on here.
Thanks!
In the second case, you're not instantiating the class, just giving it another name, tesla. The parentheses are required for instantiation.
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I have a dataframe called propertydf.
When I run my code I get a very vague error:
propertydf = propertydf[propertydf['fixed_price'].notna()].copy()
^
SyntaxError: invalid syntax
I checked the code and the dataframe variable has changed color to blue? But not all of them.
I also noticed some other variables are suddenly blue, such as year and date.
I think this is causing the error. How can I fix it?
In the line propertydf['fixed_price'] = fix_price((propertydf.iloc[:,[4]]) you open two parenthesis but only close one (It's above the line that throws the error).
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I'm not sure why I'm getting this error.enter image description here
You only need a return statement if you are inside a function. The syntax of a function is the following:
def functionName():
# code goes here
return # you can also specify what to return here or just leave it
# blank, a return statement is not necessary.
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I'm trying to exactly what is described here and seems straightforward enough:
Add 2 hours and 1 day onto a timestamp in django
Here is my code:
new_event.EventDate += timedelta(hours = int(standard_time_offsets[request.user.member.timezone]))
new_event.save
print new_event.EventDate
The print statement returns the correctly adjusted date but when I check the record it has reverted to its value prior to the save. Im stumped, all help is greatly appreciated.
You don't call the save() method. The code should be:
new_event.save()
Note the parenthesis.