ImportError: /usr/lib64/python3.6/site-packages/psycopg2/_psycopg.cpython-36m-x86_64-linux-gnu.so: undefined symbol: PQencryptPasswordConn

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ImportError: /usr/lib64/python3.6/site-packages/psycopg2/_psycopg.cpython-36m-x86_64-linux-gnu.so: undefined symbol: PQencryptPasswordConn

Marcelo Miranda
I need some help about this error described above. Follow below my test results.

Install PgAdmin4 web in centos7, apache2.4

ImportError: /usr/lib64/python3.6/site-packages/psycopg2/_psycopg.cpython-36m-x86_64-linux-gnu.so: undefined symbol: PQencryptPasswordConn


[urogr@flora-vm3 ~]$ sudo sudo rpm -i https://ftp.postgresql.org/pub/pgadmin/pgadmin4/yum/pgadmin4-redhat-repo-1-1.noarch.rpm

warning: /var/tmp/rpm-tmp.Ct8c7X: Header V3 RSA/SHA256 Signature, key ID 210976f2: NOKEY

        package pgadmin4-redhat-repo-1-1.noarch is already installed


[urogr@flora-vm3 ~]$ sudo yum install pgadmin4

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

 * base: mirror.steadfastnet.com

 * epel: mirror.steadfastnet.com

 * extras: mirrors.cmich.edu

 * remi-php73: mirror.team-cymru.com

 * remi-safe: mirror.team-cymru.com

 * updates: repos.forethought.net

Package pgadmin4-4.29-1.rhel7.x86_64 already installed and latest version

Nothing to do


[urogr@flora-vm3 ~]$ ls -l /usr/pgadmin4/bin

total 4

-rwx------. 1 root root 2101 Dec 14 16:59 pgadmin4-web-setup.sh


[urogr@flora-vm3 ~]$ sudo bash /usr/pgadmin4/bin/pgadmin4-web-setup.sh

Traceback (most recent call last):

  File "/usr/lib/python3.6/site-packages/pgadmin4-web/setup.py", line 449, in <module>

    setup_db()

  File "/usr/lib/python3.6/site-packages/pgadmin4-web/setup.py", line 372, in setup_db

    app = create_app()

  File "/usr/lib/python3.6/site-packages/pgadmin4-web/pgadmin/__init__.py", line 430, in create_app

    driver.init_app(app)

  File "/usr/lib/python3.6/site-packages/pgadmin4-web/pgadmin/utils/driver/__init__.py", line 40, in init_app

    DriverRegistry.load_drivers()

  File "/usr/lib/python3.6/site-packages/pgadmin4-web/pgadmin/utils/driver/registry.py", line 88, in load_drivers

    import_module(module_name)

  File "/usr/lib64/python3.6/importlib/__init__.py", line 126, in import_module

    return _bootstrap._gcd_import(name[level:], package, level)

  File "<frozen importlib._bootstrap>", line 994, in _gcd_import

  File "<frozen importlib._bootstrap>", line 971, in _find_and_load

  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked

  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked

  File "<frozen importlib._bootstrap_external>", line 678, in exec_module

  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed

  File "/usr/lib/python3.6/site-packages/pgadmin4-web/pgadmin/utils/driver/psycopg2/__init__.py", line 21, in <module>

    import psycopg2

  File "/usr/lib64/python3.6/site-packages/psycopg2/__init__.py", line 51, in <module>

    from psycopg2._psycopg import (                     # noqa

ImportError: /usr/lib64/python3.6/site-packages/psycopg2/_psycopg.cpython-36m-x86_64-linux-gnu.so: undefined symbol: PQencryptPasswordConn

Error setting up server mode. Please examine the output above.


[urogr@flora-vm3 /]$ sudo ls -l /usr/lib64/python3.6/site-packages/psycopg2/

total 428

-rw-r--r--. 1 root root    367 Sep  7 10:32 compat.py

-rw-r--r--. 1 root root  14273 Sep  7 10:32 errorcodes.py

-rw-r--r--. 1 root root   1420 Sep  7 10:32 errors.py

-rw-r--r--. 1 root root   7122 Sep  7 10:32 extensions.py

-rw-r--r--. 1 root root  44182 Sep  7 10:32 extras.py

-rw-r--r--. 1 root root   4916 Sep  7 10:32 __init__.py

-rw-r--r--. 1 root root   2967 Sep  7 10:32 _ipaddress.py

-rw-r--r--. 1 root root   7296 Sep  7 10:32 _json.py

-rw-r--r--. 1 root root   4261 Sep  7 10:32 _lru_cache.py

-rw-r--r--. 1 root root   6319 Sep  7 10:32 pool.py

-rwxr-xr-x. 1 root root 271784 Sep  7 10:33 _psycopg.cpython-36m-x86_64-linux-gnu.so

drwxr-xr-x. 2 root root   4096 Dec 21 17:25 __pycache__

-rw-r--r--. 1 root root  17705 Sep  7 10:32 _range.py

-rw-r--r--. 1 root root  14903 Sep  7 10:32 sql.py

-rw-r--r--. 1 root root   4446 Sep  7 10:32 tz.py



[urogr@flora-vm3 ~]$ cat /etc/httpd/conf.d/pgadmin4.conf

LoadModule wsgi_module modules/pgadmin4-python3-mod_wsgi.so

WSGIDaemonProcess pgadmin processes=1 threads=25

WSGIScriptAlias /pgadmin4 /usr/lib/python3.6/site-packages/pgadmin4-web/pgAdmin4.wsgi


<Directory /usr/lib/python3.6/site-packages/pgadmin4-web/>

        WSGIProcessGroup pgadmin

        WSGIApplicationGroup %{GLOBAL}

        <IfModule mod_authz_core.c>

                # Apache 2.4

                Require all granted

        </IfModule>

        <IfModule !mod_authz_core.c>

                # Apache 2.2

                Order Deny,Allow

                Deny from All

                Allow from 127.0.0.1

                Allow from ::1

        </IfModule>

</Directory>




[urogr@flora-vm3 /]$ cat /etc/httpd/conf/httpd.conf

#

# This is the main Apache HTTP server configuration file.  It contains the

# configuration directives that give the server its instructions.

# See <URL:http://httpd.apache.org/docs/2.4/> for detailed information.

# In particular, see

# <URL:http://httpd.apache.org/docs/2.4/mod/directives.html>

# for a discussion of each configuration directive.

#

# Do NOT simply read the instructions in here without understanding

# what they do.  They're here only as hints or reminders.  If you are unsure

# consult the online docs. You have been warned.

#

# Configuration and logfile names: If the filenames you specify for many

# of the server's control files begin with "/" (or "drive:/" for Win32), the

# server will use that explicit path.  If the filenames do *not* begin

# with "/", the value of ServerRoot is prepended -- so 'log/access_log'

# with ServerRoot set to '/www' will be interpreted by the

# server as '/www/log/access_log', where as '/log/access_log' will be

# interpreted as '/log/access_log'.


#

# ServerRoot: The top of the directory tree under which the server's

# configuration, error, and log files are kept.

#

# Do not add a slash at the end of the directory path.  If you point

# ServerRoot at a non-local disk, be sure to specify a local disk on the

# Mutex directive, if file-based mutexes are used.  If you wish to share the

# same ServerRoot for multiple httpd daemons, you will need to change at

# least PidFile.

#

ServerRoot "/etc/httpd"


#

# Listen: Allows you to bind Apache to specific IP addresses and/or

# ports, instead of the default. See also the <VirtualHost>

# directive.

#

# Change this to Listen on specific IP addresses as shown below to

# prevent Apache from glomming onto all bound IP addresses.

#

#Listen 12.34.56.78:80

Listen 80


#

# Dynamic Shared Object (DSO) Support

#

# To be able to use the functionality of a module which was built as a DSO you

# have to place corresponding `LoadModule' lines at this location so the

# directives contained in it are actually available _before_ they are used.

# Statically compiled modules (those listed by `httpd -l') do not need

# to be loaded here.

#

# Example:

# LoadModule foo_module modules/mod_foo.so

LoadModule php7_module modules/libphp7.so


#

Include conf.modules.d/*.conf


#

# If you wish httpd to run as a different user or group, you must run

# httpd as root initially and it will switch.

#

# User/Group: The name (or #number) of the user/group to run httpd as.

# It is usually good practice to create a dedicated user and group for

# running httpd, as with most system services.

#

User apache

Group apache


# 'Main' server configuration

#

# The directives in this section set up the values used by the 'main'

# server, which responds to any requests that aren't handled by a

# <VirtualHost> definition.  These values also provide defaults for

# any <VirtualHost> containers you may define later in the file.

#

# All of these directives may appear inside <VirtualHost> containers,

# in which case these default settings will be overridden for the

# virtual host being defined.

#


#

# ServerAdmin: Your address, where problems with the server should be

# e-mailed.  This address appears on some server-generated pages, such

# as error documents.  e.g. [hidden email]

#

ServerAdmin   [hidden email]


#

# ServerName gives the name and port that the server uses to identify itself.

# This can often be determined automatically, but we recommend you specify

# it explicitly to prevent problems during startup.

#

# If your host doesn't have a registered DNS name, enter its IP address here.

#

ServerName 34.68.91.149:80


#

# Deny access to the entirety of your server's filesystem. You must

# explicitly permit access to web content directories in other

# <Directory> blocks below.

#

<Directory />

    AllowOverride none

    Require all denied

</Directory>


#

# Note that from this point forward you must specifically allow

# particular features to be enabled - so if something's not working as

# you might expect, make sure that you have specifically enabled it

# below.

#


#

# DocumentRoot: The directory out of which you will serve your

# documents. By default, all requests are taken from this directory, but

# symbolic links and aliases may be used to point to other locations.

#

DocumentRoot "/var/www/html"


#

# Relax access to content within /var/www.

#

<Directory "/var/www">

    AllowOverride None

    # Allow open access:

    Require all granted

</Directory>


# Further relax access to the default document root:

<Directory "/var/www/html">

    #

    # Possible values for the Options directive are "None", "All",

    # or any combination of:

    #   Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews

    #

    # Note that "MultiViews" must be named *explicitly* --- "Options All"

    # doesn't give it to you.

    #

    # The Options directive is both complicated and important.  Please see

    # http://httpd.apache.org/docs/2.4/mod/core.html#options

    # for more information.

    #

    Options Indexes FollowSymLinks


    #

    # AllowOverride controls what directives may be placed in .htaccess files.

    # It can be "All", "None", or any combination of the keywords:

    #   Options FileInfo AuthConfig Limit

    #

    AllowOverride None


    #

    # Controls who can get stuff from this server.

    #

    Require all granted

</Directory>


#

# DirectoryIndex: sets the file that Apache will serve if a directory

# is requested.

#

<IfModule dir_module>

    DirectoryIndex index.html

</IfModule>


#

# The following lines prevent .htaccess and .htpasswd files from being

# viewed by Web clients.

#

<Files ".ht*">

    Require all denied

</Files>


#

# ErrorLog: The location of the error log file.

# If you do not specify an ErrorLog directive within a <VirtualHost>

# container, error messages relating to that virtual host will be

# logged here.  If you *do* define an error logfile for a <VirtualHost>

# container, that host's errors will be logged there and not here.

#

ErrorLog "logs/error_log"


#

# LogLevel: Control the number of messages logged to the error_log.

# Possible values include: debug, info, notice, warn, error, crit,

# alert, emerg.

#

LogLevel warn


<IfModule log_config_module>

    #

    # The following directives define some format nicknames for use with

    # a CustomLog directive (see below).

    #

    LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined

    LogFormat "%h %l %u %t \"%r\" %>s %b" common


    <IfModule logio_module>

      # You need to enable mod_logio.c to use %I and %O

      LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio

    </IfModule>


    #

    # The location and format of the access logfile (Common Logfile Format).

    # If you do not define any access logfiles within a <VirtualHost>

    # container, they will be logged here.  Contrariwise, if you *do*

    # define per-<VirtualHost> access logfiles, transactions will be

    # logged therein and *not* in this file.

    #

    #CustomLog "logs/access_log" common


    #

    # If you prefer a logfile with access, agent, and referer information

    # (Combined Logfile Format) you can use the following directive.

    #

    CustomLog "logs/access_log" combined

</IfModule>


<IfModule alias_module>

    #

    # Redirect: Allows you to tell clients about documents that used to

    # exist in your server's namespace, but do not anymore. The client

    # will make a new request for the document at its new location.

    # Example:

    # Redirect permanent /foo http://www.example.com/bar


    #

    # Alias: Maps web paths into filesystem paths and is used to

    # access content that does not live under the DocumentRoot.

    # Example:

    # Alias /webpath /full/filesystem/path

    #

    # If you include a trailing / on /webpath then the server will

    # require it to be present in the URL.  You will also likely

    # need to provide a <Directory> section to allow access to

    # the filesystem path.


    #

    # ScriptAlias: This controls which directories contain server scripts.

    # ScriptAliases are essentially the same as Aliases, except that

    # documents in the target directory are treated as applications and

    # run by the server when requested rather than as documents sent to the

    # client.  The same rules about trailing "/" apply to ScriptAlias

    # directives as to Alias.

    #

    ScriptAlias /cgi-bin/ "/var/www/cgi-bin/"


</IfModule>


#

# "/var/www/cgi-bin" should be changed to whatever your ScriptAliased

# CGI directory exists, if you have that configured.

#

<Directory "/var/www/cgi-bin">

    AllowOverride None

    Options None

    Require all granted

</Directory>


<IfModule mime_module>

    #

    # TypesConfig points to the file containing the list of mappings from

    # filename extension to MIME-type.

    #

    TypesConfig /etc/mime.types


    #

    # AddType allows you to add to or override the MIME configuration

    # file specified in TypesConfig for specific file types.

    #

    #AddType application/x-gzip .tgz

    #

    # AddEncoding allows you to have certain browsers uncompress

    # information on the fly. Note: Not all browsers support this.

    #

    #AddEncoding x-compress .Z

    #AddEncoding x-gzip .gz .tgz

    #

    # If the AddEncoding directives above are commented-out, then you

    # probably should define those extensions to indicate media types:

    #

    AddType application/x-compress .Z

    AddType application/x-gzip .gz .tgz


    #

    # AddHandler allows you to map certain file extensions to "handlers":

    # actions unrelated to filetype. These can be either built into the server

    # or added with the Action directive (see below)

    #

    # To use CGI scripts outside of ScriptAliased directories:

    # (You will also need to add "ExecCGI" to the "Options" directive.)

    #

    #AddHandler cgi-script .cgi


    # For type maps (negotiated resources):

    #AddHandler type-map var


    #

    # Filters allow you to process content before it is sent to the client.

    #

    # To parse .shtml files for server-side includes (SSI):

    # (You will also need to add "Includes" to the "Options" directive.)

    #

    AddType text/html .shtml

    AddOutputFilter INCLUDES .shtml

</IfModule>


#

# Specify a default charset for all content served; this enables

# interpretation of all content as UTF-8 by default.  To use the

# default browser choice (ISO-8859-1), or to allow the META tags

# in HTML content to override this choice, comment out this

# directive:

#

AddDefaultCharset UTF-8


<IfModule mime_magic_module>

    #

    # The mod_mime_magic module allows the server to use various hints from the

    # contents of the file itself to determine its type.  The MIMEMagicFile

    # directive tells the module where the hint definitions are located.

    #

    MIMEMagicFile conf/magic

</IfModule>


#

# Customizable error responses come in three flavors:

# 1) plain text 2) local redirects 3) external redirects

#

# Some examples:

#ErrorDocument 500 "The server made a boo boo."

#ErrorDocument 404 /missing.html

#ErrorDocument 404 "/cgi-bin/missing_handler.pl"

#ErrorDocument 402 http://www.example.com/subscription_info.html

#


#

# EnableMMAP and EnableSendfile: On systems that support it,

# memory-mapping or the sendfile syscall may be used to deliver

# files.  This usually improves server performance, but must

# be turned off when serving from networked-mounted

# filesystems or if support for these functions is otherwise

# broken on your system.

# Defaults if commented: EnableMMAP On, EnableSendfile Off

#

#EnableMMAP off

EnableSendfile on


# Supplemental configuration

#

# Load config files in the "/etc/httpd/conf.d" directory, if any.

IncludeOptional conf.d/*.conf



----
Atenciosamente,
Marcelo Miranda
Enviado pelo Gsuite