Zipline: Error in installing zipline via conda

[jonmilson]

Hi Zipline maintainers,

I've tried to install zipline via conda using: conda install -c Quantopian zipline but came to the error below. Please help.

Fetching package metadata ....
WARNING: The remote server could not find the noarch directory for the
requested channel with url: https://conda.anaconda.org/Qantopian

It is possible you have given conda an invalid channel. Please double-check
your conda configuration using conda config --show.

If the requested url is in fact a valid conda channel, please request that the
channel administrator create noarch/repodata.json and associated
noarch/repodata.json.bz2 files, even if noarch/repodata.json is empty.
$ mkdir noarch
$ echo '{}' > noarch/repodata.json
$ bzip2 -k noarch/repodata.json
.......

PackageNotFoundError: Package missing in current osx-64 channels:

• zipline

[jonmilson]

I also tried this in the terminal:
conda install -c Quantopian -c https://conda.anaconda.org/Quantopian/label/ci zipline

but, the result is that despite having zipline installed, there is an error during import:

```---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
in ()
----> 1 import zipline

//anaconda/lib/python2.7/site-packages/zipline/__init__.pyc in ()
39 from . import gens
40 from . import utils
---> 41 from .utils.run_algo import run_algorithm
42 from ._version import get_versions
43 # These need to happen after the other imports.

//anaconda/lib/python2.7/site-packages/zipline/utils/run_algo.py in ()
16
17 from zipline.algorithm import TradingAlgorithm
---> 18 from zipline.data.bundles.core import load
19 from zipline.data.data_portal import DataPortal
20 from zipline.finance.trading import TradingEnvironment

//anaconda/lib/python2.7/site-packages/zipline/data/bundles/__init__.py in ()
1 # These imports are necessary to force module-scope register calls to happen.
----> 2 from . import quandl # noqa
3 from .core import (
4 UnknownBundle,
5 bundles,

//anaconda/lib/python2.7/site-packages/zipline/data/bundles/quandl.py in ()
13 from six.moves.urllib.parse import urlencode
14
---> 15 from . import core as bundles
16 from zipline.utils.cli import maybe_show_progress
17

//anaconda/lib/python2.7/site-packages/zipline/data/bundles/core.py in ()
22 )
23 from zipline.assets import AssetDBWriter, AssetFinder, ASSET_DB_VERSION
---> 24 from zipline.assets.asset_db_migrations import downgrade
25 from zipline.utils.cache import (
26 dataframe_cache,

//anaconda/lib/python2.7/site-packages/zipline/assets/asset_db_migrations.py in ()
1 from functools import wraps
2
----> 3 from alembic.migration import MigrationContext
4 from alembic.operations import Operations
5 import sqlalchemy as sa

//anaconda/lib/python2.7/site-packages/alembic/__init__.py in ()
6
7
----> 8 from . import op # noqa
9 from . import context # noqa

//anaconda/lib/python2.7/site-packages/alembic/op.py in ()
4 # create proxy functions for
5 # each method on the Operations class.
----> 6 util.create_module_class_proxy(Operations, globals(), locals())

AttributeError: 'module' object has no attribute 'create_module_class_proxy'```

[freddiev4]

Hi @jonsariaatmadja you're seeing this error because we have not yet built OS X packages for the latest version of zipline. For now, I'd recommend downloading zipline from the master branch on GitHub.

[jonmilson]

Thanks FreddieV4,

I tried your recommendation and still got this error:

PackageNotFoundError: Package missing in current osx-64 channels:

• git+https://github.com/quantopian/zipline.git

[freddiev4]

@jonsariaatmadja did you try installing via pip?

[jonmilson]

Yes I used both pip and conda. (Since I have Anaconda and have 2 versions) of numpy, pandas and zipline. I think my mac uses conda when using it in terminal and iPython:

```zipline 1.0.2 np110py27_0 Quantopian
zipline 1.1.0+133.gbe8ea7c

pandas 0.21.0.dev0+54.g0d43131
pandas 0.17.1 np110py27_0

numpy 1.12.1
numpy 1.10.2 py27_0

[jonmilson]

I tried to force update my pandas but it came to the following outcomes:

```conda install pandas=0.18
Fetching package metadata .........
Solving package specifications: .

UnsatisfiableError: The following specifications were found to be in conflict:

• pandas 0.18*
• zipline -> pandas >=0.16.1,<0.18
  Use "conda info " to see the dependencies for each package.```

[jonmilson]

I upgraded my pandas to 0.17 and came out with a new error when importing zipline:

import zipline Traceback (most recent call last): File "<stdin>", line 1, in <module> File "//anaconda/lib/python2.7/site-packages/zipline/__init__.py", line 20, in <module> from . import data File "//anaconda/lib/python2.7/site-packages/zipline/data/__init__.py", line 1, in <module> from . import loader File "//anaconda/lib/python2.7/site-packages/zipline/data/loader.py", line 20, in <module> from pandas_datareader.data import DataReader File "//anaconda/lib/python2.7/site-packages/pandas_datareader/data.py", line 7, in <module> from pandas_datareader.google.daily import GoogleDailyReader File "//anaconda/lib/python2.7/site-packages/pandas_datareader/google/daily.py", line 1, in <module> from pandas_datareader.base import _DailyBaseReader File "//anaconda/lib/python2.7/site-packages/pandas_datareader/base.py", line 11, in <module> from pandas.core.common import PandasError, is_number ImportError: cannot import name PandasError

[freddiev4]

Can you try installing the latest version of zipline using pip install -U zipline?

[jonmilson]

Yes I did.

On May 19, 2017 8:57 AM, "Freddie Vargus" [e-mail] wrote:

@jonsariaatmadja https://github.com/jonsariaatmadja did you try
installing via pip?

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[freddiev4]

Sorry, I meant to also mention that we recently did a new release of zipline, 1.1.1. Did that install work for you?

[kkshyu]

@jonsariaatmadja I have faced the same issue and I tried the followings then it works...

1. create a new conda env: conda create -n dev && activate dev
2. do not install anaconda, it may limit your pandas and other packages' version
3. install zipline with conda: conda install -c quantopian zipline

Notice: if you are using jupyter, you should install jupyter again in the new conda env. In my case, i didn't reinstall jupyter notebook in the new conda env and got the same error with you for a long time...

Hope it may help you.