I am stuck with installing python2.7 on my redhat6 , which has default python 2.6 installed. Also searched a lot for repository of 'python-deltarpm' and 'deltarpm' which is required for installing 'createrepo', but didn't get.
I added repo from dvd and from https://www.tecmint.com/how-to-enable-epel-repository-for-rhel-centos-6-5/ and yum repolist gives repolist: 11,960.
I want to install pip & virtualenv using python2.7.
Python 2.7 is available as a software collection. However, if I interpret the channel data correctly, it has only been released for x86-64, and there aren't even any i686 multlib RPMs. I don't know why Red Hat is not shipping such RPMs; I suggest to contact customer support and see if they can provide builds.
Got it...I installed python2.7 as follows
cd /usr/src
wget https://www.python.org/ftp/python/2.7.13/Python-2.7.13.tgz
tar xzf Python-2.7.13.tgz
cd Python-2.7.13
./configure
make altinstall
Related
I have legacy production servers that are still running Python 2.7.6. We have a local environment built from the docker image for ubuntu 14.04 intended to replicate that environment (things still work there once everything is installed.) The packer build script that creates this environment recently stopped working apparently due to PyPi dropping non-SNI support.
I tried using get-pip.py from the docs to download pip:
wget -c https://bootstrap.pypa.io/pip/2.7/get-pip.py
python2 get-pip.py
This gives me the following warning:
DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support pip 21.0 will remove support for this functionality.
/tmp/tmpBb3LJu/pip.zip/pip/_vendor/urllib3/util/ssl_.py:424: SNIMissingWarning: An HTTPS request has been made, but the SNI (Server Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings
/tmp/tmpBb3LJu/pip.zip/pip/_vendor/urllib3/util/ssl_.py:164: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections 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.html#ssl-warnings
ERROR: Could not find a version that satisfies the requirement pip<21.0 (from versions: none)
ERROR: No matching distribution found for pip<21.0
The proposed solution for that is to use pip to upgrade urllib3
https://serverfault.com/questions/866062/easy-install-and-pip-fail-with-ssl-warnings
I don't have pip so I installed a legacy version using
apt-get install python-pip
This installs pip 1.5.4
When I try to pip install "urllib3[secure]" I get the following:
Requirement already satisfied (use --upgrade to upgrade): urllib3[secure] in /usr/lib/python2.7/dist-packages
Installing extra requirements: 'secure'
Cleaning up...
If I try pip install "urllib3[secure]" --upgrade or pip install --index-url https://pypi.python.org/simple/ --upgrade pip I get:
Cannot fetch index base URL https://pypi.python.org/simple/
Could not find any downloads that satisfy the requirement urllib3[secure] in /usr/lib/python2.7/dist-packages
Downloading/unpacking urllib3[secure]
Cleaning up...
No distributions at all found for urllib3[secure] in /usr/lib/python2.7/dist-packages
Storing debug log for failure in /root/.pip/pip.log
(the pip message reflects pip, not urllib3[secure])
When I try to use pip 1.5 to install uWSGI
pip install uWSGI
I get the following:
Downloading/unpacking uWSGI
Cannot fetch index base URL https://pypi.python.org/simple/
Could not find any downloads that satisfy the requirement uWSGI
Cleaning up...
No distributions at all found for uWSGI
Storing debug log for failure in /root/.pip/pip.log
Upgrading pip doesn't work here either
Downloading/unpacking uWSGI==2.0.18 (from -r /root/requirements.txt (line 1))
Cannot fetch index base URL https://pypi.python.org/simple/
Could not find any downloads that satisfy the requirement uWSGI==2.0.18 (from -r /root/requirements.txt (line 1))
Cleaning up...
No distributions at all found for uWSGI==2.0.18 (from -r /root/requirements.txt (line 1))
Storing debug log for failure in /root/.pip/pip.log
Reinstalling pip doesn't work:
python -m pip install -U --force-reinstall pip
Gives me:
Downloading/unpacking pip
Cannot fetch index base URL https://pypi.python.org/simple/
Could not find any downloads that satisfy the requirement pip
Cleaning up...
No distributions at all found for pip
Storing debug log for failure in /root/.pip/pip.log
If I open /root/.pip/pip.log I see the following:
Downloading/unpacking pip
Getting page https://pypi.python.org/simple/pip/
Could not fetch URL https://pypi.python.org/simple/pip/: 403 Client Error: [[[!!! BREAKING CHANGE !!!]]] Support for clients that do not support Server Name Indication is temporarily disabled and will be permanently deprecated soon. See https://status.python.org/incidents/hzmjhqsdjqgb and https://github.com/pypa/pypi-support/issues/978 [[[!!! END BREAKING CHANGE !!!]]]
The link says that SNI support was dropped:
For users of Python 2.7.{0...8}
Upgrading to the last Python 2.7 release is an option.
However, note that Python 2.7 series itself is now End of Life and support in pip was dropped with version 21.0.
For users of Python 2.6.x and lower:
Neither the Python core developers, or pip maintainers support Python 2.6 and below.
If someone is aware of a work around for this issue (SNI support specifically) they are welcome to share it here for others.
There is no recommended solution from the PyPI team.
How can I get a local environment set up for new developers to work on our legacy application? I've created a new Python 3 dev server and local environment but it will be some time before I can roll out the staging and live environments, get everything moved over, and test it.
As the message says, PyPi has discontinued support for Python <2.7.9 as of May 6th 2021. If you're running a version < 2.7.9 and you cannot upgrade to a newer version of Python then your only option is to manually download the wheels from PyPi.
These are the modification I needed to make to my build script to make it work:
I needed to install software-properties-common and gcc
apt-get install -y software-properties-common gcc
Then I downloaded (setuptools](https://pypi.org/project/setuptools/44.1.1/#files) and unzipped and installed it:
python ./setuptools-44.1.1/setup.py install
Next, I downloaded pip and added it to a folder called wheels. Then I could use the whl file to run pip to get pip
python ./wheels/pip-20.3.4-py2.py3-none-any.whl/pip install --no-index --find-links ./wheels/ pip --ignore-installed
It was suggested to build a Docker container using Ubuntu 16.04 with Python 2.7.17 and use that to download the packages.
pip download -r requirements.txt
But the versions of the packages were wrong, so I ended up going through the requirements.txt and downloading each package manually from PyPi and adding it to the wheels folder. A running instance is useful so you can run pip freeze or look at a requirements.txt file to grab the version numbers of all the packages you need.
Now that I could use pip, I can install my other packages:
python pip install --no-index --find-links ./wheels/ -r /root/requirements.txt
This uncovered some dependencies that I hadn't downloaded packages for yet so I had to go through and download those and added them to the wheels folder. There were a few other things I found needed different versions than I had originally downloaded and a few packages relied on pbr and many more wanted wheel:
pip install --no-index --find-links ./wheels/ pbr==5.5.1 wheel==0.36.2
I also needed to download cMake and add it to the wheels folder
After that I could install my requirements.txt:
pip install --no-index --find-links ./wheels/ -r /root/requirements.txt --ignore-installed
May be late to the party but something similar happened to me while trying to make an HTTPS request with Python 2.7.6 (lack of SNI support). This was causing a lot of issues on a remote web server I work on.
Looking for answers I tried installing urllib3[secure] and entered a loophole since pip was complaining about a lack of SNI support to install this and other packages as well.
I found out this StackOverflow answer which helped me install the required dependencies to make Python 2.7.6 and pip itself support SNI as well as install urllib[secure].
You need to create a folder containing the required wheels (download them from PyPi using wget for instance):
pip, asn1crypto, enum34, idna, six, ipaddress, pyOpenSSL, cffi,
cryptography wheels; and also pycparser (a non-wheel, it will be a
tar.gz)
Make sure the wheels you download support Python 2.7 and that you install pip before the rest of them.
In the original answer, its stated you can use python -m OpenSSL.debug to verify everything worked correctly (a ModuleNotFoundError would mean the pyOpenSSL package was not installed). You can also use pip -Vto check that the new pip version was installed correctly as well.
After updating pip and installing these dependencies I was able to install urllib3[secure] and get SNI support from python as well as pip.
Good luck!
I am sharing this answer as an update to Jonathan Rys's answer that contains the steps required as of the date of this answer. I tried to keep this concise.
As the message says, PyPi has discontinued support for Python <2.7.9 as of May 6th 2021. If you're running a version < 2.7.9 and you cannot upgrade to a newer version of Python then your only option is to manually download the wheels from PyPi.
For Ubuntu 20.04, I have installed build-essential sudo apt-get install build-essential
I installed Python 2 from source, downloading tar bundle and built and installed this. Note, I removed the python command, to avoid that old confusion, so we have python2 and python2.7 and also python3 (for example).
tar xf Python-2.7.18.tgz
cd Python-2.7.18
./configure && make && sudo make install
(cd /usr/local/bin;sudo rm python python-config)
cd ..
Now to get pip installed. Download setuptools zip archive. Then install it:
unzip setuptools-44.1.1.zip
cd setuptools-44.1.1
python2 bootstrap.py
sudo python2 setup.py install
cd ..
Next, I downloaded pip .tar.gz archive. Then unpack and install it. Note, I took extra steps to preserve and restore the original python3 pip in /usr/local/bin. Pip for Python2 are still available as pip2 and pip2.7 in the same directory.
tar xf pip-20.3.4.tar.gz
cd pip-20.3.4
(cd /usr/local/bin;sudo mv pip pip-save)
sudo python2 setup.py install
(cd /usr/local/bin;sudo mv pip-save pip)
Now that I could use pip, I can install the most important package any Python user should install, ipython. Note that I do a user install for this and also preserve my "ipython" command to run python3 and have ipython2 to run python2:
pip2.7 install ipython
(cd ~/.local/bin;rm ipython;ln -s ipython3 ipython)
and it works!
$ ipython2
Python 2.7.18 (default, Jun 22 2022, 09:38:45)
Type "copyright", "credits" or "license" for more information.
IPython 5.10.0 -- An enhanced Interactive Python.
I'm working on a Pyramid project that has to be deployed in a Debian 7 server.
The Debian 7 server has the python version 2.7.3 as from the archives repositories.
After creating a virtual environment with virtualenv command the pip version installed in this virtualenv is 1.1.
First thing noted: I can't upgrade pip with pip install --upgrade pip. The version is not updated and remains in 1.1 version.
After installing the OS packages needed to install the project I ran python setup.py install but I get the error:
Searching for zipp==0.5
Reading http://pypi.python.org/simple/zipp/
Couldn't find index page for 'zipp' (maybe misspelled?)
Scanning index of all packages (this may take a while)
Reading http://pypi.python.org/simple/
No local packages or download links found for zipp==0.5
error: Could not find suitable distribution for Requirement.parse('zipp==0.5')
So, the python setup.py install command could not recognize the zipp package.
I thought that this was related to the older version of pip (1.1). So I could update pip version successfully using the index-url option:
$ pip install --index-url https://pypi.python.org/simple --upgrade pip
That updated pip version from 1.1 to 20.3b1. Then I tried python setup.py install again, but the same error occurred.
What I could see is that, after updating pip version, the zipp==0.5.0 package is installed if I ran pip install zipp==0.5.
I'm new to Pyramid and the package installing using the setup.py module. I'm not understanding why I can install the zipp package with pip and can't with python setup.py install.
I'm not putting the content of setup.py here because I think it's not a problem of the setup.py script. With more recent versions of python and pip in an Ubuntu 18.04 machine the setup.py works like a charm.
Someone could explain how to solve this issue?
When you run python setup.py install directly, you are not using pip, so the version of pip you have installed is irrelevant. This command is antiquated, should not be used, etc, etc. The right answer is to use pip install . as a replacement for python setup.py install and to use pip install -e . as a replacement for python setup.py develop.
With respect to what you're seeing, when you run python setup.py install this using the version of easy_install bundled with setuptools to talk to PyPI and install dependencies. This should be avoided for a lot of reasons but just know that to override urls it uses they go in ~/.pydistutils.cfg and have nothing to do with pip. HTTPS is one problem that you looked at, another is that old versions of Python do not have the right CA trust store, nor support the minimum required TLS 1.2 to handshake with PyPI. So expect lots of problems using old tools - at the very least try to use pip instead of easy_install.
I'm following the directions from the Biopython website (http://biopython.org/wiki/Download) but I keep getting an error during installation. I have python 2.7 installed on my laptop.
python2.7 -m pip install biopython
I just get the error:
No module named pip
I looked up this error and tried something stack overflow suggested:
sudo apt-get install python-pip
But I just got another error:
sudo: apt-get: command not found
As long as you have Python 2.7.9 onwards this should automatically install pip for you:
python -m ensurepip
It would be useful to know what Operating System you have to help improve the instructions here.
Many dependency issues are solved here at Annaconda where you fetch python, lots of nice libs, etc.. Install it accordingly to your platform.. windows, Linux or Mac OS.
Biopython is installed by Annaconda by default (including matplotlib and other dependencies)... if I recall correctly. Otherwise its from commandline conda search biopython and or conda install pip. And then commandline pip install biopython.
I am working on small python scripts. Basically i am not a python programmer and very new to it. Recently i have been working on IOT protocol MQTT. I have installed a open source MQTT clinet based on python3 in my raspberypi board. And now i am facing a problem. I have python 2.7 and 3.2 installed.
My MQTT client work with Python3.x and i want to use pyserial library also which i am not able to , i am getting a error
Serial module not found
I goggled a bit and end up here.. Now it say that you need to install pip3 in order to install pyserial for python3.x.
I tried to install pip3 using this link , but end up installing pip2 using
pip install -U pip
I feel totally being messed up now. I just want to use pyserial while working with python3.x version.Can any one suggest me how?
Edit 1:
On Linux, Mac OS X and other POSIX systems, use the versioned Python commands in combination with the -m switch to run the appropriate copy of pip:
python2 -m pip install SomePackage # default Python 2
python2.7 -m pip install SomePackage # specifically Python 2.7
python3 -m pip install SomePackage # default Python 3
python3.4 -m pip install SomePackage # specifically Python 3.4
I recently came through this documentation given here . But it even give a error to me /usr/bin/python3 : NO module named pip. main : 'pip' is a package and cannot be installed directly.
Assuming you're using raspbian on your pi, you could install pip3 from the normal repositories:
apt-get install python3-pip
You can get the serial module the same way:
apt-get install python3-serial
I succeeded installing pyserial2.7 on a Mac running Yosemite and Python3.4
I entered the pyserial-x.y directory and run:
python3 setup.py install
I got lot of errors that I corrected one by one by editing the files containing the syntax errors. Only 2 types of errors are encountered:
- print needs ()
- except needs as instead of ,
So by correcting the dozen of errors with some patience, installation finish correctly.
I wonder why a syntactically correct version for Python3 is not ready!
sudo apt-get install python-Orange
or
sudo apt-get install python-orange
doesn't work
sudo python setup.py install
sudo python setup.py build
is not working as well.
Can anyone help??
Python has two tools for easy installation of all programs that are listed on the Python Package Index, also known as PyPi: These are easy_install and pip. Both retrieve very recent versions of Orange (and of any other package that is updating its PyPi entry regularly).
I installed Orange on Ubuntu 12.04 (LTS) with
pip install orange.
You will see lots of log lines indicating that Pip is downloading and compiling Orange for you. Simply wait. When pip is ready, fire up python and try to import orange. If that works, quit python and try the GUI with python /usr/local/lib/python2.7/dist-packages/Orange/OrangeCanvas/orngCanvas.pyw (you probably want to create a shell alias or bash script for that one :-)
NOTE: on 12.04 I needed to first upgrade 'distribute' itself with sudo easy_install -U distribute but this was clearly indicated by pip.
https://pypi.python.org/pypi/Orange/2.6/
You need to extract the dowloaded tarball on that page to a folder and then change directory to that folder. Then the sudo python setup.py... instructions will work (but you should 'build' the application before you 'install' it).
go to the given link "https://pypi.python.org/pypi/Orange/2.6/"
download the package and extract the file
install with given command
python setup.py build
python setup.py install
note:- during installation make sure that your net is working because it downloads required packages. Also it may ask for C++ or gcc compilers while installing and could be terminate just read the errors care fully and install requires packages from the synaptic package manage in ubuntu.