How to update a Python package which was installed by pip
According to The Ubuntu lifecycle and release cadence Ubuntu 16.04 has full support until mid-2021.
Yet when I run:
pip install cryptography
it says:
Requirement already satisfied: cryptography in /usr/lib/python2.7/dist-packages (1.2.3)
cryptography 1.2.3 is from March, 2016.
The cryptography package fully supports Python 2.7, and there were dozens of new cryptography versions released since 2016, so why is it impossible to update it?
package-management updates python
add a comment |
According to The Ubuntu lifecycle and release cadence Ubuntu 16.04 has full support until mid-2021.
Yet when I run:
pip install cryptography
it says:
Requirement already satisfied: cryptography in /usr/lib/python2.7/dist-packages (1.2.3)
cryptography 1.2.3 is from March, 2016.
The cryptography package fully supports Python 2.7, and there were dozens of new cryptography versions released since 2016, so why is it impossible to update it?
package-management updates python
add a comment |
According to The Ubuntu lifecycle and release cadence Ubuntu 16.04 has full support until mid-2021.
Yet when I run:
pip install cryptography
it says:
Requirement already satisfied: cryptography in /usr/lib/python2.7/dist-packages (1.2.3)
cryptography 1.2.3 is from March, 2016.
The cryptography package fully supports Python 2.7, and there were dozens of new cryptography versions released since 2016, so why is it impossible to update it?
package-management updates python
According to The Ubuntu lifecycle and release cadence Ubuntu 16.04 has full support until mid-2021.
Yet when I run:
pip install cryptography
it says:
Requirement already satisfied: cryptography in /usr/lib/python2.7/dist-packages (1.2.3)
cryptography 1.2.3 is from March, 2016.
The cryptography package fully supports Python 2.7, and there were dozens of new cryptography versions released since 2016, so why is it impossible to update it?
package-management updates python
package-management updates python
edited Jan 17 at 13:04
karel
59.7k13129151
59.7k13129151
asked Jan 17 at 11:03
LuisLuis
182
182
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add a comment |
1 Answer
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From results of man pip
:
-U, --upgrade
Upgrade all packages to the newest available version.
The -U
option of pip upgrades all package(s) that come after it in the same command to the newest available version. An exception is made where upgrading a package will conflict with a newer version of one of that package's installed dependencies, in which case the dependency package is kept at the newer version and an older version of the same dependency package is installed alongside it to allow both packages to be upgraded to the newest available version.
Open the terminal and type:
sudo pip install -U cryptography
This command will upgrade the cryptography package from 1.2.3 to the latest version, 2.4.2.
Check the version of the upgraded cryptography Python module.
$ pip freeze | grep cryptography
cryptography==2.4.2
Can you explain why the -U flag is important here?
– Luis
Jan 17 at 12:34
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
From results of man pip
:
-U, --upgrade
Upgrade all packages to the newest available version.
The -U
option of pip upgrades all package(s) that come after it in the same command to the newest available version. An exception is made where upgrading a package will conflict with a newer version of one of that package's installed dependencies, in which case the dependency package is kept at the newer version and an older version of the same dependency package is installed alongside it to allow both packages to be upgraded to the newest available version.
Open the terminal and type:
sudo pip install -U cryptography
This command will upgrade the cryptography package from 1.2.3 to the latest version, 2.4.2.
Check the version of the upgraded cryptography Python module.
$ pip freeze | grep cryptography
cryptography==2.4.2
Can you explain why the -U flag is important here?
– Luis
Jan 17 at 12:34
add a comment |
From results of man pip
:
-U, --upgrade
Upgrade all packages to the newest available version.
The -U
option of pip upgrades all package(s) that come after it in the same command to the newest available version. An exception is made where upgrading a package will conflict with a newer version of one of that package's installed dependencies, in which case the dependency package is kept at the newer version and an older version of the same dependency package is installed alongside it to allow both packages to be upgraded to the newest available version.
Open the terminal and type:
sudo pip install -U cryptography
This command will upgrade the cryptography package from 1.2.3 to the latest version, 2.4.2.
Check the version of the upgraded cryptography Python module.
$ pip freeze | grep cryptography
cryptography==2.4.2
Can you explain why the -U flag is important here?
– Luis
Jan 17 at 12:34
add a comment |
From results of man pip
:
-U, --upgrade
Upgrade all packages to the newest available version.
The -U
option of pip upgrades all package(s) that come after it in the same command to the newest available version. An exception is made where upgrading a package will conflict with a newer version of one of that package's installed dependencies, in which case the dependency package is kept at the newer version and an older version of the same dependency package is installed alongside it to allow both packages to be upgraded to the newest available version.
Open the terminal and type:
sudo pip install -U cryptography
This command will upgrade the cryptography package from 1.2.3 to the latest version, 2.4.2.
Check the version of the upgraded cryptography Python module.
$ pip freeze | grep cryptography
cryptography==2.4.2
From results of man pip
:
-U, --upgrade
Upgrade all packages to the newest available version.
The -U
option of pip upgrades all package(s) that come after it in the same command to the newest available version. An exception is made where upgrading a package will conflict with a newer version of one of that package's installed dependencies, in which case the dependency package is kept at the newer version and an older version of the same dependency package is installed alongside it to allow both packages to be upgraded to the newest available version.
Open the terminal and type:
sudo pip install -U cryptography
This command will upgrade the cryptography package from 1.2.3 to the latest version, 2.4.2.
Check the version of the upgraded cryptography Python module.
$ pip freeze | grep cryptography
cryptography==2.4.2
edited Jan 17 at 12:50
answered Jan 17 at 11:11
karelkarel
59.7k13129151
59.7k13129151
Can you explain why the -U flag is important here?
– Luis
Jan 17 at 12:34
add a comment |
Can you explain why the -U flag is important here?
– Luis
Jan 17 at 12:34
Can you explain why the -U flag is important here?
– Luis
Jan 17 at 12:34
Can you explain why the -U flag is important here?
– Luis
Jan 17 at 12:34
add a comment |
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