this is my first time diving into emscripten and web assembly and I am having some trouble with the installation process. I tried following the directions for mac on emscriptens website and I am able to do the pull command from github with no problem. However when trying to install emscripten with the "./emsdk install latest" command line it keeps failing.
Been at this for hours and I have updated just about everything and re-downloaded python to make sure it is the newest version. This is the error message I am getting:
Error: Downloading URL 'https://storage.googleapis.com/webassembly/emscripten-releases-builds/deps/node-v14.18.2-darwin-x64.tar.gz': <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:997)>
Warning: Possibly SSL/TLS issue. Update or install Python SSL root certificates (2048-bit or greater) supplied in Python folder or https://pypi.org/project/certifi/ and try again.
error: installation failed!
Any help is much appreciated! Thank you!
Please do not use python2. Install certifi with pip3 install certifi. Then just browse to Applications/Python 3.x and double-click Install Certificates.command
Now you can continue the installation.
Do not use Python 3. You must use Python 2.
python3 ./emsdk.py install latest
python3 ./emsdk.py activate latest
python ./emsdk.py install latest
python ./emsdk.py activate latest
See also Unable to install latest due to SSL certificate verify failed and Emsdk download fails on clean-is macOS Catalina 10.15.1
I used python3 -m venv to create a virtual environment, in that virtual environment my settings are:
python 3.5.2
pip 8.1.1
Mac OS 10.13.6
That pip version is extremely OLD and leads to a problem described below: how do I get venv to install a newer version of pip?
Whenever I run "pip install " I get an error of the form:
Could not fetch URL https://pypi.python.org/simple/<any_package>/: There was a problem confirming the ssl certificate: [SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version (_ssl.c:645) - skipping
I have tried this with = flask, gunicorn, and requests and believe that it's not a package specific problem.
What I tried to fix the problem:
I came across this link which suggested I should upgrade pip somehow: https://github.com/pypa/pip/issues/5226
So I upgraded pip up to the latest version:
pip 20.0.2 from /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pip (python 3.5)
But the problem persisted. So then I upgraded venv to the latest version.
But the problem persisted again.
I did some more research online and came across the following github issue: https://github.com/pypa/pip/issues/5363
Which had as part of the problem statement text very similar to my TLS issue, but none of the answers there seemed to be able to fix the problem (pasting each one resulted in the same TLS issue).
Finally I found something that worked:
From this question: Upgrading pip/installing django - [SSL: TLSV1_ALERT_PROTOCOL_VERSION]
The solution below:
curl https://bootstrap.pypa.io/get-pip.py | python3
Upgrades my "virtual enviromnet's pip" to the correct version. But I yet to figure out how to get my default pip (when I create a new virtual environment) to be up to date.
As of today, it is not possible.
Starting with Python 3.9 it should be possible to do something like path/to/pythonX.Y -m venv --upgrade-deps .venv, and that would upgrade pip and setuptools in the newly created virtual environment:
https://bugs.python.org/issue34556
https://github.com/python/cpython/pull/13100
https://docs.python.org/3.9/library/venv.html
You could try virtualenv instead, if it suits your workflow better. As far as I know it tries to always install the latest version of pip in the virtual environments it creates.
https://pypi.org/project/virtualenv/
There is an example of code at the end of venv's documentation showing how to create a tool that downloads and installs up-to-date pip and setuptools:
https://docs.python.org/3/library/venv.html#an-example-of-extending-envbuilder
User wim made an interesting suggestion here:
https://stackoverflow.com/a/60217751
I have a tool called ve that does something similar:
https://pypi.org/project/ve/
There are some answers to similar questions, suggesting to modify the wheel files bundled with ensurepip in Python's standard library, but I wouldn't recommend that.
Similar questions:
How to get "python -m venv" to directly install latest pip version
Why 'python3 -m venv myenv' installs older version of pip into myenv than any version of pip I can find anywhere on the system?
We are using python 2.7.3 and do not have Anaconda available for install in the organization approved package list. So we have been trying to manually install the dependencies using unofficial windows binaries provided by Christoph Gohlke. Currently we are stuck at installing terminado-0.8.1-py2.py3-none-any.whl. This needs a pywinpty package which is not available for Python 2.7.
We would appreciate any suggestions on how to proceed.
We would like to get Jupyter installed using any other possible option for python 2.7.3
installing jupyter using pip gives below error so we went with manual route to install individual packages
60: InsecurePlatformWarning: A true SSLContext object is not available. This pre
vents urllib3 from configuring SSL appropriately and may cause certain SSL conne
ctions to fail. You can upgrade to a newer version of Python to solve this. For
more information, see https://urllib3.readthedocs.io/en/latest/advanced-usage.ht
ml#ssl-warnings
InsecurePlatformWarning
Could not fetch URL https://pypi.org/simple/jupyter/: There was a problem conf
irming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max
retries exceeded with url: /simple/jupyter/ (Caused by SSLError(SSLError(1, '_ss
l.c:504: error:1407742E:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert protocol
version'),)) - skipping
Could not find a version that satisfies the requirement jupyter (from versions
: )
No matching distribution found for jupyter
You can:
Go to Python root folder and run the "Install Certificates.command" file.
Upgrade python version to 3.X.X and reinstall. You may follow https://www.youtube.com/watch?v=BVS3U1OQzO4
this worked for me on WIndows 10:
explicitly installing an older version of the package
PS> python2.exe -m pip install pywinpty==0.5.1
PS> python2.exe -m pip install notebook
PS> python2.exe -m pip install jupyter
Zero errors.
Reference:
https://pypi.org/project/pywinpty/0.5.1/
I have a virtualenv environment running python 3.5
Today, when I booted up my MacBook, I found myself unable to install python packages for my Django project. I get the following error:
Could not fetch URL <package URL>: There was a problem confirming the ssl certificate: [SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version (_ssl.c:646) - skipping
I gather that TLS 1.0 has been discontinued, but from what I understand, newer versions of Python should be using TLS1.2, correct? Even outside of my environment, running pip3 trips the same error. I've updated to the latest version of Sierra and have updated Xcode as well. Does anyone know how to resolve this?
Here is the fix:
curl https://bootstrap.pypa.io/get-pip.py | python
Execute from within the appropriate virtual environment.
I have been trying to figure this out for a while now and for some reason I get stuck with an ssl issue and have no idea what is going on.
Problem:
I have installed python2.7 and easy_install2.7, but when trying to install pip with easy_install2.7 I get the following error.
[root#cops-wc-01]# /usr/local/bin/easy_install-2.7 pip
Searching for pip
Reading https://pypi.python.org/simple/pip/
Download error on https://pypi.python.org/simple/pip/: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590) -- Some packages may not be found!
Couldn't find index page for 'pip' (maybe misspelled?)
Scanning index of all packages (this may take a while)
Reading https://pypi.python.org/simple/
Download error on https://pypi.python.org/simple/: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590) -- Some packages may not be found!
No local packages or download links found for pip
error: Could not find suitable distribution for Requirement.parse('pip')
It is trying to download, but this SSL cert verification failure is preventing it.
Does anyone know a way around this, or a way to resolve it?
Sorry if it is a noob question :)
[root#cops-wc-01]# uname -a
Linux 2.6.32-504.30.3.el6.x86_64 #1 SMP Wed Jul 15 10:13:09 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
[root#cops-wc-01]#
Centos 6
apt-get install ca-certificates
If you missed this package.
On my device (that runs nix),
$ date showed ...1969
so I had to set the date to a more recent time :
$ date -s "26 MAR 2017 13:16:00"
Then the SSL error was gone.
YAS (Yet Another Solution)
I had the same issue.
Tried everything above.
My issue was fixed by upgrading pip and setuptools:
$ pip install -U pip setuptools
I also tried to add an entry in my ~/.pip/pip.conf file:
[global]
trusted=https://pypi.your.domain
Most likely pip does not have the required CA certificates to validate that.
You can force pip to use openssl's CAs to see if it helps.
The easiest solution that worked for me:
From https://pypi.python.org/pypi/pip, download 'pip-8.1.2.tar.gz'
Install it with pip, "pip install ./pip-8.1.2.tar.gz"
On the ubuntu server, the new version pip may be installed in a different location. If checking version with 'pip --version', it's still an older version one, like pip 1.5.6. To install a package with the new version pip, straightforwardly use the absolute path for convenience:
/home/tom/.local/bin/pip install ./gensim-0.13.1.tar.gz
Install dependencies one by one, errors like this below can be bypassed.
Download error on https://pypi.python.org/simple/pip/: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590) -- Some packages may not be found!"
On macbook put this line in ~/.bash_profile:
export SSL_CERT_FILE=/usr/local/etc/openssl/cert.pem
And forget about this error.
Of course, if you don't have openssl - run brew install openssl. And don't forget to do . .bash_profile after first edit of .bash_profile.
I ran the following commands to resolve the issue:
$ curl https://bootstrap.pypa.io/get-pip.py >> get-pip.py
$ python get-pip.py
This upgraded pip to v9.0.3, and this version has no issues.
Since this is currently the top hit on Google for this issue I thought I would share my solution. As weird as it is. I'm on CentOS 7, Python3.6 although I believe it doesn't matter which Python version.
The SSLError / CERTIFICATE_VERIFY_FAILED was also happening for me when I ran a fresh copy of get-pip.py.
The solution was to run the install command with output piped to a file, so python get-pip.py &> output. I haven't had the time to find out why not having a TTY affects the environment for the script.
If you are running behind a web filter or firewall, please ensure SSL inspection/decryption is disabled or bypassed for the domain *.pythonhosted.org (or more specifically, files.pythonhosted.org). May also need to include pypi.org.
I'm running Python on an enterprise workstation and this has been the culprit in our environment across Windows and Linux hosts. Confirmed with our older system, a Broadcom ProxySG on prem web filter appliance, and later through Cisco's Umbrella Cloud Gateway/SIG product.
Cheers
I didn't realize that there is a command "python -M ensurepip after 7.9. This fixed my issue.