Both the attached files cause this problem. I'm using v.2.6.1.
JD
On Tuesday, April 23, 2019 at 4:06:06 PM UTC-7, JDelage wrote:
>
> I'm getting the following error message when trying to import a set of
> flashcards (as a tab delimited txt file). I'd appreciate any help people
> might have...
>
>
>
> [image: Screen Shot 2019-04-23 at 4.01.16 PM.png]
>
>
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How to define a function? <pre>def <function_name>
(<arg>,...):<br>	<function body, calms, etc><br>	return
<values, etc>
Does a function *need* a return? No (e.g., print())
What is the alternative to passing argument value by position, e.g.,
<code>cylinder_volume(10, 7)</code>? By name, e.g.,
<code>cylinder_volume(height=10, radius=7)</code>
What is the alternative to passing argument value by name, e.g.,
<code>cylinder_volume(height=10, radius=7)</code>? By position, e.g.,
<code>cylinder_volume(10, 7)</code>
How to assign a default value to a function's arguments? With an "="
sign, e.g., <code>def cylinder_volume(height, radius=5):</code>
The value of a global variable can not be modified inside the function unless
... ... it is passed in as an argument.
What happens if a piece of code attempts to modify a global variable?
<code>UnboundLocalError</code>
What's a docstring? A snipet of text used to describe a function, incl.
input & output.
A docstring is surrounded by ... ... triple quotes: """ ... """
Use a lambda expression to replace this: <pre>def multiply(x,
y):<br>	return x * y</pre> <code>multiply = lambda x, y: x * y</code>
<code>filter()</code> is a higher-order built-in function that takes a function
and iterable as inputs and returns an iterator with the elements from the
iterable for which the function returns <code>True</code>. The code below uses
<code>filter()</code> to get the names in cities that are fewer than 10
characters long to create the list <code>short_cities</code>. Rewrite this code
to be more concise by replacing the <code>is_short</code> function with a
lambda expression defined within the call to <code>filter()</code>.<pre>cities
= ["New York City", "Los Angeles", "Chicago", "Mountain View", "Denver",
"Boston"]<br>def is_short(name):<br>	return len(name) < 10<br>short_cities
= list(filter(is_short, cities))<br>=print(short_cities)</pre>
<pre>cities = ["New York City", "Los Angeles", "Chicago", "Mountain View",
"Denver", "Boston"]<br>short_cities = list(filter(lambda name: len(name)<10,
cities))<br>print(short_cities)</pre>
An ***** is an object that represents a stream of data. iterator
An iterator is an object that represents a *****. stream of data
***** are a simple way to create iterators using functions. Generators
Generators are a simple way to create ***** using functions. iterators
True or false: A list is an iterable. True
True or false: A list is an iterator. False
***** are objects that can return one of their elements at a time.
Iterables
A generator function uses the keyword ***** to return its data.
<code>yield</code>
