Quantopian's community platform is shutting down. Please read this post for more information and download your code.
Back to Community
AttributeError: 'dict' object has no attribute 'iteritems'

Hi all,
I'm new to Quantopian, and I'm trying some examples from the Cookbook. I got this error in the following example.
I would like to know why this error occurs.

I would greatly appreciate any help to clarify this.

def initialize(context):

schedule_function(  
    my_func,  
    date_rules.every_day(),  
    time_rules.market_open(minutes=15)  
)

def my_func(context, data):

# Order 100 shares of AAPL.  
order_target(sid(24), 100)

# Retrieve all open orders.  
open_orders = get_open_orders()

# If there are any open orders.  
if open_orders:  
    # open_orders is a dictionary keyed by sid, with values that are lists of orders. Iterate over the dictionary  
    for security, orders in open_orders.iteritems():  
        # Iterate over the orders and log the total open amount  
        # for each order.  
        for oo in orders:  
            message = 'Open order for {amount} shares in {stock}'  
            message = message.format(amount=oo.amount, stock=security)  
            log.info(message)  
2 responses

First off, welcome to Quantopian. Earlier this year we migrated the platform from Python 2.7 to Python 3.5. The code above was for Python 2. The methods .iteritems(), .itervalues(), and .iterkeys() are no longer supported for iterating dictionaries in Python 3. Replace them with .items(), .values(), and .keys(). There is a good explanation of the change here.

So, simply change the code to this and it should work.

    for security, orders in open_orders.items():  

Good luck.

Disclaimer

The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by Quantopian. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. No information contained herein should be regarded as a suggestion to engage in or refrain from any investment-related course of action as none of Quantopian nor any of its affiliates is undertaking to provide investment advice, act as an adviser to any plan or entity subject to the Employee Retirement Income Security Act of 1974, as amended, individual retirement account or individual retirement annuity, or give advice in a fiduciary capacity with respect to the materials presented herein. If you are an individual retirement or other investor, contact your financial advisor or other fiduciary unrelated to Quantopian about whether any given investment idea, strategy, product or service described herein may be appropriate for your circumstances. All investments involve risk, including loss of principal. Quantopian makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances.

Perfect,
good point Dan.
Thanks.