pip3.10.4 is configured with locations that require TLS/SSL, however the ssl module in Python is not available

[alessandropioli]

BPO	47201
Nosy	@tiran

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2022-04-02.15:10:50.216>
labels = ['expert-installation', '3.10']
title = 'pip3.10.4 is configured with locations that require TLS/SSL, however the ssl module in Python is not available'
updated_at = <Date 2022-04-02.19:35:32.607>
user = 'https://bugs.python.org/alessandropioli'

bugs.python.org fields:

activity = <Date 2022-04-02.19:35:32.607>
actor = 'christian.heimes'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Installation']
creation = <Date 2022-04-02.15:10:50.216>
creator = 'alessandro.pioli'
dependencies = []
files = []
hgrepos = []
issue_num = 47201
keywords = []
message_count = 2.0
messages = ['416558', '416580']
nosy_count = 2.0
nosy_names = ['christian.heimes', 'alessandro.pioli']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue47201'
versions = ['Python 3.10']

[alessandropioli]

After installation of 3.4.10 with openssl procedure https://docs.python.org/3/using/unix.html#on-linux
on centos 7.9
pip get this error:

pip3.10 install -r requirements.txt
WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/jinja2/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/jinja2/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/jinja2/
WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/jinja2/
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/jinja2/
Could not fetch URL https://pypi.org/simple/jinja2/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/jinja2/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.")) - skipping
ERROR: Could not find a version that satisfies the requirement Jinja2 (from versions: none)
ERROR: No matching distribution found for Jinja2
WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pip/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.")) - skipping

[tiran]

CentOS 7 has an unsupported OpenSSL version. You need to build your own OpenSSL or use my work from https://github.com/tiran/cpython_builddep/#note

sudo yum install -y epel
sudo yum install -y openssl11-devel
sed -i 's/PKG_CONFIG openssl /PKG_CONFIG openssl11 /g' configure

[jacoblapenna]

I have this same issue on Raspberry Pi OS. During sudo make altinstall I get:

Could not build the ssl module!
Python requires a OpenSSL 1.1.1 or newer

Even though openssl version gives OpenSSL 1.1.1n 15 Mar 2022.

[tiran]

I have this same issue on Raspberry Pi OS. During sudo make altinstall I get:

You are missing the OpenSSL development package. Install libssl-dev first.

[jacoblapenna]

You are missing the OpenSSL development package. Install libssl-dev first.

That worked, thank you!

[ezio-melotti]

@tiran, can this be closed?
Do we need to document this in the devguide and/or elsewhere?

[tiran]

Build dependencies are documented in the devguide, https://devguide.python.org/setup/#build-dependencies