Qiskit-terra: Failed building wheel for qiskit

[pep3e]

I am trying to install qiskit through pip on IBM DSX (Data science experience). Running Python 3.5 with Spark 2.1 Notebook.
Following the steps on the QISKit main page ( https://www.qiskit.org/ ) and here in this paper - https://nbviewer.jupyter.org/github/QISKit/qiskit-tutorial/blob/stable/1_introduction/running_on_IBM_DSX.ipynb

I always get to the point where I need to install qiskit:
pip install qiskit

Every time I try the installation fails with the following error:

running install_egg_info
Copying qiskit.egg-info to build/bdist.linux-x86_64/wheel/qiskit-_QISKIT_VERSION_.data/purelib/qiskit-_QISKIT_VERSION_-py3.5.egg-info
error: [Errno 2] No such file or directory: 'qiskit.egg-info'

---

Failed building wheel for qiskit
Running setup.py clean for qiskit

Also tried to clone the repo and rename the install.py.in file to install.py and run pip install ./qiskit-sdk-py/install.py but the error comes up.

[diego-plan9]

Hello @pep3e ,

there were some changes in the build system for the latest 0.4.9 release that might the cause - however, I'm having some trouble reproducing the issue. Could you paste the output of these commands in your environment, to try to narrow down the issue?

cmake --version
pip --version
uname -a

Also, could you confirm if the following line you pasted has been copied verbatim (ie has not been modified by you when writing the issue)?

Copying qiskit.egg-info to build/bdist.linux-x86_64/wheel/qiskit-_QISKIT_VERSION_.data/purelib/qiskit-_QISKIT_VERSION_-py3.5.egg-info

The reason for asking is due to the last line of your comment - the file setup.py.in is not meant to be copied and renamed manually, and that copy and rename might be causing that particular error. Could you try running in a new folder:

pip uninstall qiskit
pip install -v qiskit

and attach the full output on your reply, in case it fails to install again?

[pep3e]

Hello Diego,
The problem was that I didn't have cmake:
pip install cmake
fixed my issue. Thank you for the help

[diego-plan9]

Glad to hear, @pep3e ! For the record (and for reference if the same problem is encountered by other users), on the upcoming QISKit releases, cmake will not be required for installing via pip - it was a temporary byproduct of the latest changes.

[attp]

Hi @diego-plan9, I'm currently reworking the DSX install instructions and am having this problem as well. This is the error I get when I try pip install qiskit, even when cmake is available:

running install_egg_info
Copying qiskit.egg-info to /gpfs/fs01/user/s048-114a05d8c2ea2f-aeaae8f7ca3a/.local/lib/python3.5/site-packages/qiskit-0.4.9-py3.5.egg-info
error: [Errno 2] No such file or directory: 'qiskit.egg-info'`

Do I need to specify a particular version of QISKit?

[atilag]

Hi @attp let me jump in with @diego-plan9 permission.
I have just uploaded a prebuilt binary package compatible with DSX. Try to install again:

$ pip install --no-cache-dir qiskit

... and let me know if somehing is wrong.

[attp]

Thanks @atilag - it works now. :)

[amantamirat]

pip install cmake ,is works fine!!! and then pip install qiskit