I am trying to read from ini file and replace it with os environment variables.
My ini file:
[svc1]
host=%(TEST_IP)s
port=%(TEST_PORT)s
database=test_db
user=test
connect_timeout=3
My python file:
from configparser import ConfigParser
import os
print(os.environ['TEST_IP'])
print(os.environ['TEST_PORT'])
parser = ConfigParser(os.environ)
parser.read('test.ini')
print(parser.items('svc1'))
Output:
192.168.1.1
8080
Traceback (most recent call last):
File "test.py", line 8, in <module>
print(parser.items('svc1'))
File "/usr/lib/python3.8/configparser.py", line 859, in items
return [(option, value_getter(option)) for option in orig_keys]
File "/usr/lib/python3.8/configparser.py", line 859, in <listcomp>
return [(option, value_getter(option)) for option in orig_keys]
File "/usr/lib/python3.8/configparser.py", line 855, in <lambda>
value_getter = lambda option: self._interpolation.before_get(self,
File "/usr/lib/python3.8/configparser.py", line 395, in before_get
self._interpolate_some(parser, option, L, value, section, defaults, 1)
File "/usr/lib/python3.8/configparser.py", line 442, in _interpolate_some
raise InterpolationSyntaxError(
configparser.InterpolationSyntaxError: '%' must be followed by '%' or '(', found: '%s %s'
What am I doing wrong here?
My python version: Python 3.8.10
Python treats the % character differently, when part of the contents of a string can cause this issue.
As per the helpful Python error message (see traceback) rather than escape it, just double it within your original string to %%
A useful way to obfuscate plain text passwords from prying eyes!
FYI configparser.py also does not like the # standard comment character
or empty values so I use = []
As mentioned here:
https://github.com/mobeigi/fb2cal/issues/37
https://github.com/flakshack/pyPerfmon/issues/1
Related
When I change the content file and styleFile vars for just the file path, it works fine. So I know that the content file is there and that it can find it.
I must be passing a variable incorrectly to the other python script. I've been trying but I can't google myself out of this one at the moment.
import os
listStyles = ['/content/neural-style-tf/styles/1.png']
listContent = ['/content/neural-style-tf/image_input/00078.png']
i = 0
for imageName in listStyles:
stylefile = imageName
contentfile = listContent[i]
i = i + 1
print (stylefile)
print (contentfile)
print ('')
!python neural_style.py --content_img contentfile --style_imgs stylefile
Output:
/content/neural-style-tf/styles/1.png
/content/neural-style-tf/image_input/00078.png
Traceback (most recent call last):
File "neural_style.py", line 889, in <module>
main()
File "neural_style.py", line 886, in main
else: render_single_image()
File "neural_style.py", line 849, in render_single_image
content_img = get_content_image(args.content_img)
File "neural_style.py", line 715, in get_content_image
check_image(img, path)
File "neural_style.py", line 552, in check_image
raise OSError(errno.ENOENT, "No such file", path)
FileNotFoundError: [Errno 2] No such file: './image_input/contentfile'
I'm just dumb and need to not just brute force a language when I need it and learn it beforehand.
If anyone else comes across this you need to put a $ in front of the variable to let python know you're passing a var instead of a string.
I need to parse an open-source project Postgresql using pycparser.
While parsing its source-code the following error arises:
Traceback (most recent call last):
File "examples\using_cpp_libc.py", line 48, in <module>
getAllFiles(projectName)
File "examples\using_cpp_libc.py", line 29, in getAllFiles
ast = parse_file(dirName+'\\'+fname, use_cpp = True, cpp_path = 'cpp',
cpp_args = [r'-nostdinc',r'-Iutils/fake_libc_include',r'-
Iprojects/postgresql/src/include'])
File "G:\python\pycparser-master\pycparser\__init__.py", line 92, in
parse_file
return parser.parse(text, filename)
File "G:\python\pycparser-master\pycparser\c_parser.py", line 152, in parse
debug=debuglevel)
File "G:\python\pycparser-master\pycparser\ply\yacc.py", line 334, in parse
return self.parseopt_notrack(input, lexer, debug, tracking, tokenfunc)
File "G:\python\pycparser-master\pycparser\ply\yacc.py", line 1204, in
parseopt_notrack
tok = call_errorfunc(self.errorfunc, errtoken, self)
File "G:\python\pycparser-master\pycparser\ply\yacc.py", line 193, in
call_errorfunc
r = errorfunc(token)
File "G:\python\pycparser-master\pycparser\c_parser.py", line 1838, in
p_error
column=self.clex.find_tok_column(p)))
File "G:\python\pycparser-master\pycparser\plyparser.py", line 67, in
_parse_error
raise ParseError("%s: %s" % (coord, msg))
pycparser.plyparser.ParseError:
projects/postgresql/src/include/pg_config_os.h:366:15: before:
pgwin32_signal_event
I am using postgresql-9.6.9, build it using visual studio express 2017 on windows 10 (64-bit)
The blog post you quoted in the comment is the canonical resource. Parsing large C projects is not easy - they have their own quirks - so it takes work. I doubt it's resolvable within the confines of a Stack Overflow question.
You need to start tackling the issues one by one - for example look at the pgwin32_signal_event token in pg_config_os.h - why can't it be parsed? Perhaps its type is unparsable? Was it defined? Could it be added to a "fake" header, etc. Unfortunately, there's no easy way to do this except working through the issues one by one.
Be sure to preprocess the file you're parsing first, dumping the full preprocessed version into a single .c file - this gets all the types into a single file you can work with.
I am trying to creat AST usinfg pyCparser,
The following error printed:
Traceback (most recent call last):
File "C:\Work\RE\Tools\VarsExporter\BuildExportedDb.py", line 1076, in
main()
File "C:\Work\RE\Tools\VarsExporter\BuildExportedDb.py", line 1032, in main
ast = parse_file(i_file)
File "C:\Python27\lib\site-packages\pycparser_init_.py", line 93, in
parse_file
return parser.parse(text, filename)
File "C:\Python27\lib\site-packages\pycparser\c_parser.py", line 152, in
parse
debug=debuglevel)
File "C:\Python27\lib\site-packages\pycparser\ply\yacc.py", line 331, in
parse
return self.parseopt_notrack(input, lexer, debug, tracking, tokenfunc)
File "C:\Python27\lib\site-packages\pycparser\ply\yacc.py", line 1199, in
parseopt_notrack
tok = call_errorfunc(self.errorfunc, errtoken, self)
File "C:\Python27\lib\site-packages\pycparser\ply\yacc.py", line 193, in
call_errorfunc
r = errorfunc(token)
File "C:\Python27\lib\site-packages\pycparser\c_parser.py", line 1761, in
p_error
column=self.clex.find_tok_column(p)))
File "C:\Python27\lib\site-packages\pycparser\plyparser.py", line 67, in _
parse_error
raise ParseError("%s: %s" % (coord, msg))
ParseError: Objectffly\SerDb.i:43:18: before: __loff_t
What causes the above issue? How Can I handle it?
Any suggestions how can I debug it, and find out what's going on?
From pyCparser git FAQ:
C code almost always #includes various header files from the standard C library, like stdio.h. While (with some effort) pycparser can be made to parse the standard headers from any C compiler, it's much simpler to use the provided "fake" standard includes in utils/fake_libc_include. These are standard C header files that contain only the bare necessities to allow valid parsing of the files that use them.
To solve the issue I have successfully used the method described here.
When I use first example in Python's nntplib module documentation, there are some errors.
>>> from nntplib import NNTP
>>> s = NNTP('news.gmane.org')
>>> resp, count, first, last, name = s.group('gmane.comp.python.committers')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python27\lib\nntplib.py", line 354, in group
resp = self.shortcmd('GROUP ' + name)
File "C:\Python27\lib\nntplib.py", line 268, in shortcmd
return self.getresp()
File "C:\Python27\lib\nntplib.py", line 223, in getresp
resp = self.getline()
File "C:\Python27\lib\nntplib.py", line 215, in getline
if not line: raise EOFError
EOFError
Why does this happen?
Try s = NNTP('news.gmane.org', readermode=True)
As mentioned in the docs:
If the optional flag readermode is true, then a mode reader command is
sent before authentication is performed. Reader mode is sometimes
necessary if you are connecting to an NNTP server on the local machine
and intend to call reader-specific commands, such as group. If you get
unexpected NNTPPermanentErrors, you might need to set readermode.
I downloaded the ansible-2.0.0-0.2.alpha2.tar.gz and installed it on my control machine. However now I'm not able to ping any of my machines. Previously using v1.9.2 i could communicate with them. Now it gives the following error:
Unexpected Exception: lstat() argument 1 must be encoded string without NULL bytes, not str
the full traceback was:
Traceback (most recent call last):
File "/usr/bin/ansible", line 79, in
sys.exit(cli.run())
File "/usr/lib/python2.6/site-packages/ansible/cli/adhoc.py", line 111, in run
inventory = Inventory(loader=loader, variable_manager=variable_manager, host_list=self.options.inventory)
File "/usr/lib/python2.6/site-packages/ansible/inventory/init.py", line 77, in init
self.parse_inventory(host_list)
File "/usr/lib/python2.6/site-packages/ansible/inventory/init.py", line 133, in parse_inventory
host.vars = combine_vars(host.vars, self.get_host_variables(host.name))
File "/usr/lib/python2.6/site-packages/ansible/inventory/init.py", line 499, in get_host_variables
self.vars_per_host[hostname] = self.get_host_variables(hostname, vault_password=vault_password)
File "/usr/lib/python2.6/site-packages/ansible/inventory/__init.py", line 529, in get_host_variables
vars = combine_vars(vars, self.get_host_vars(host))
File "/usr/lib/python2.6/site-packages/ansible/inventory/__init_.py", line 653, in get_host_vars
return self.get_hostgroup_vars(host=host, group=None, new_pb_basedir=new_pb_basedir)
File "/usr/lib/python2.6/site-packages/ansible/inventory/__init_.py", line 702, in _get_hostgroup_vars
base_path = os.path.realpath(os.path.join(basedir, "host_vars/%s" % host.name))
File "/usr/lib64/python2.6/posixpath.py", line 365, in realpath
if islink(component):
File "/usr/lib64/python2.6/posixpath.py", line 132, in islink
st = os.lstat(path)
TypeError: lstat() argument 1 must be encoded string without NULL bytes, not str
Any help would be appreciated.
This is a known bug due to some Unicode changes made to the playbook parser in 2.0. Several versions of Python shipped with a version of shlex.split() that fails horribly on Unicode input- you likely have one of them installed. The bug has been worked around and will be included in the next drop. See https://github.com/ansible/ansible/issues/12257