We Keep Coding

tabula-py unable to read pdf file

My code:
import tabula
import os
dir_path = os.path.dirname(os.path.realpath(__file__))
file_path = dir_path + '\ALPINE_' + str(20191107) + '.pdf'
print(file_path)
df = tabula.read_pdf('ALPINE_20191107.pdf',multiple_tables=True, pages="all")
result:
runfile('C:/Users/Admin/Documents/lucas/testTabula.py.py', wdir='C:/Users/Admin/Documents/lucas')
Traceback (most recent call last):
File "<ipython-input-29-a6b390aef3cf>", line 1, in <module>
runfile('C:/Users/Admin/Documents/lucas/sem título0.py', wdir='C:/Users/Admin/Documents/lucas')
File "C:\ProgramData\Anaconda3\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 827, in runfile
execfile(filename, namespace)
File "C:\ProgramData\Anaconda3\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 110, in execfile
exec(compile(f.read(), filename, 'exec'), namespace)
File "C:/Users/Admin/Documents/lucas/sem título0.py", line 12, in <module>
df = tabula.read_pdf('ALPINE_20191107.pdf',multiple_tables=True, pages="all")
File "C:\ProgramData\Anaconda3\lib\site-packages\tabula\io.py", line 332, in read_pdf
return _extract_from(raw_json, pandas_options)
File "C:\ProgramData\Anaconda3\lib\site-packages\tabula\io.py", line 664, in _extract_from
df[c] = pd.to_numeric(df[c], errors="ignore")
File "C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\tools\numeric.py", line 138, in to_numeric
raise TypeError("arg must be a list, tuple, 1-d array, or Series")
TypeError: arg must be a list, tuple, 1-d array, or Series
It's function doesn't seem to work. I could directly type the path to make even simpler, but it didn't work either. It could be a problem with the pdf file, but I already saw it working in another environment with the same script and the same file.
I already have java set on both possible PATHs ('C:\Program Files\Java\jre1.8.0_231\bin') as by documentation but it really doesn't matter, the error occurs with or without then set on PATH. I've tried adding jdk as well but didn't solve either.
I notice the error mentioning pandas so maybe it's conflicting with my version (the latest), but i'm not sure.
python is 3.7.4 and java is the latest to this date

I have had the same issue. I was using the version installed using pip, i.e. tabula-py 2.0.0. I uninstalled the version, and installed from Anaconda using conda install -c conda-forge tabula-py, and current version is tabula-py 1.4.1, which resolved this issue.

Include multiple source directories in Qt for Android

I want to include Java source code from multiple directories (which are shared between projects) in a Qt for Android project. On http://imaginativethinking.ca/what-the-heck-how-do-i-share-java-code-between-qt-android-projects/ an approach is described which copies the Java source files:
# This line makes sure my custom manifest file and project specific java code is copied to the android-build folder
ANDROID_PACKAGE_SOURCE_DIR = $$PWD/android
# This is a custom variable which holds the path to my common Java code
# I use the $$system_path() qMake function to make sure that my directory separators are correct for the platform I'm compiling on as you need to use the correct separator in the Make file (i.e. \ for Windows and / for Linux)
commonAndroidFilesPath = $$system_path( $$PWD/../CommonLib/android-sources/src )
# This is a custom variable which holds the path to the src folder in the output directory. That is where they need to go for the ANT script to compile them.
androidBuildOutputDir = $$system_path( $$OUT_PWD/../android-build/src )
# Here is the magic, this is the actual copy command I want to run.
# Make has a platform agnostic copy command macro you can use which substitutes the correct copy command for the platform you are on: $(COPY_DIR)
copyCommonJavaFiles.commands = $(COPY_DIR) $${commonAndroidFilesPath} $${androidBuildOutputDir}
# I tack it on to the 'first' target which exists by default just because I know this will happen before the ANT script gets run.
first.depends = $(first) copyCommonJavaFiles
export(first.depends)
export(copyCommonJavaFiles.commands)
QMAKE_EXTRA_TARGETS += first copyCommonJavaFiles
With later Qt versions the code has to be changed to this:
commonAndroidFilesPath = $$system_path($$PWD/android/src)
androidBuildOutputDir = $$system_path($$OUT_PWD/../android-build)
createCommonJavaFilesDir.commands = $(MKDIR) $${androidBuildOutputDir}
copyCommonJavaFiles.commands = $(COPY_DIR) $${commonAndroidFilesPath} $${androidBuildOutputDir}
first.depends = $(first) createCommonJavaFilesDir copyCommonJavaFiles
export(first.depends)
export(createCommonJavaFilesDir.commands)
export(copyCommonJavaFiles.commands)
QMAKE_EXTRA_TARGETS += first createCommonJavaFilesDir copyCommonJavaFiles
Is this the standard way to go, or is there some built-in functionality for including multiple Java source directories in Qt for Android projects?
Regards,

A much cleaner solution is this one:
CONFIG += file_copies
COPIES += commonJavaFilesCopy
commonJavaFilesCopy.files = $$files($$system_path($$PWD/android/src))
commonJavaFilesCopy.path = $$OUT_PWD/android-build

Internal Action was not loaded Error: java.lang.ClassNotFoundException

I am trying to run an implementation a jason code that is using some Internal Actions. The interpreter is showing that it was not possible to find the "java" code of the internal action, as showed:
Server running on http://191.36.8.42:3272
[aslparser] [peleus.asl:29] warning: The internal action class for 'org.soton.peleus.act.plan(Goals)' was not loaded! Error:
java.lang.ClassNotFoundException: org.soton.peleus.act.plan
[aslparser] [peleus.asl:42] warning: The internal action class for 'org.soton.peleus.act.isTrue(H)' was not loaded! Error:
java.lang.ClassNotFoundException: org.soton.peleus.act.isTrue
[peleus] Could not finish intention: intention 1: +des([on(b3,table),on(b2,b3),on(b1,b2)])[source(self)] <- ... org.soton.peleus.act.plan(Goals); !checkGoals(Goals); .print("Goals ",Goals," were satisfied") /
{Goals=[on(b3,table),on(b2,b3),on(b1,b2)]}Trigger: +des([on(b3,table),on(b2,b3),on(b1,b2)])[noenv,code(org.soton.peleus.act.plan([on(b3,table),on(b2,b3),on(b1,b2)])),code_line(29),code_src("peleus.asl"),error(action_failed),error_msg("no environment configured!"),source(self)]
[peleus] Adding belief clear(table)
This mas2j file is as following:
MAS peleus {
infrastructure: Centralised
agents:
peleus;
}
Part of agent code (written by Felipe Meneguzzi) is showed bellow:
//The next line is line 28
+des(Goals) : true
<- org.soton.peleus.act.plan(Goals);
!checkGoals(Goals);
.print("Goals ",Goals," were satisfied").
+!checkGoals([]) : true <- true.
//The next line is line 40
+!checkGoals([H|T]) : true
<- .print("Checking ", H);
org.soton.peleus.act.isTrue(H);
!checkGoals(T).
I guess it is about the folder structure, how to set up Jason to search for java files in specific locations?
The folders structure is like this:
Peleus\src\org\soton\peleus for java files
Peleus\examples for mas2j and asl tested project

It all depends on how you are executing the application.
If you are using java, the CLASSPATH should be defined to include the missing classes.
if you are using jason script (that uses Ant), the .mas2j file should include the class path as well.
More on that in the FAQ. Notice that CLASSPATH is where .class files are found, not .java source code files. The error regards a missing class, not a missing source code.

elasticsearch can't install head plugin

I am planing to install head pluging for elasticsearch.
in both these two official documentation, http://mobz.github.io/elasticsearch-head/ and http://docs.couchbase.com/admin/elastic/install-plugin.html they said to use this:
bin/plugin -install mobz/elasticsearch-head
I did, but i got the following error:
PS C:\elasticsearch-1.3.9\elasticsearch-1.3.9> bin/plugin -install mobz/elasticsearch-head
Exception in thread "main" org.elasticsearch.common.settings.SettingsException: Failed to load settings from [file:/C:/
lasticsearch-1.3.9/elasticsearch-1.3.9/config/elasticsearch.yml]
at org.elasticsearch.common.settings.ImmutableSettings$Builder.loadFromStream(ImmutableSettings.java:947)
at org.elasticsearch.common.settings.ImmutableSettings$Builder.loadFromUrl(ImmutableSettings.java:931)
at org.elasticsearch.node.internal.InternalSettingsPreparer.prepareSettings(InternalSettingsPreparer.java:77)
at org.elasticsearch.plugins.PluginManager.main(PluginManager.java:382)
Caused by: unacceptable character ' ' (0x0) special characters are not allowed
in "'reader'", position 13489
at org.elasticsearch.common.jackson.dataformat.yaml.snakeyaml.reader.StreamReader.checkPrintable(StreamReader.j
va:93)
at org.elasticsearch.common.jackson.dataformat.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:192)
at org.elasticsearch.common.jackson.dataformat.yaml.snakeyaml.reader.StreamReader.peek(StreamReader.java:146)
at org.elasticsearch.common.jackson.dataformat.yaml.snakeyaml.scanner.ScannerImpl.scanToNextToken(ScannerImpl.j
va:1199)
at org.elasticsearch.common.jackson.dataformat.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.j
va:289)
at org.elasticsearch.common.jackson.dataformat.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:2
6)
at org.elasticsearch.common.jackson.dataformat.yaml.snakeyaml.parser.ParserImpl$ParseImplicitDocumentStart.prod
ce(ParserImpl.java:195)
at org.elasticsearch.common.jackson.dataformat.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:158)
at org.elasticsearch.common.jackson.dataformat.yaml.snakeyaml.parser.ParserImpl.getEvent(ParserImpl.java:168)
at org.elasticsearch.common.jackson.dataformat.yaml.YAMLParser.nextToken(YAMLParser.java:331)
at org.elasticsearch.common.xcontent.json.JsonXContentParser.nextToken(JsonXContentParser.java:50)
at org.elasticsearch.common.settings.loader.XContentSettingsLoader.load(XContentSettingsLoader.java:60)
at org.elasticsearch.common.settings.loader.XContentSettingsLoader.load(XContentSettingsLoader.java:45)
at org.elasticsearch.common.settings.loader.YamlSettingsLoader.load(YamlSettingsLoader.java:46)
at org.elasticsearch.common.settings.ImmutableSettings$Builder.loadFromStream(ImmutableSettings.java:944)
... 3 more
as I was trying to diagnosis the error, I found that there might b something wrong in elasticsearch.yml file. I went to that file, and opened it using notpadd++, and it was all commented except the last three-four lines, they were letters not understandable. this is a print screen of them:
could you help please

In that file you shouldn't have those chars. Remove them and start over. Or take a clean instance of ES, take the config file from that and use it.

what does the following statement mean?

In the http://ant.apache.org/manual/tutorial-HelloWorldWithAnt.html
echo Main-Class: oata.HelloWorld>myManifest
md build\jar
jar cfm build\jar\HelloWorld.jar myManifest -C build\classes .
java -jar build\jar\HelloWorld.jar
Note: Do not have blanks around the >-sign in the echo Main-Class instruction because it would falsify it!
Anyone know why there is such Note. I do not see any difference when we hae balnks around >-sign.

You are correct, it makes no difference. Not sure what the message on the tutorial means.

Just a guess.
It probably meant to stress the need for getting the line correctly copied. Main-Class attribute
Any value other than 'Main-Class:' will fail the jar creation.
With a white space after - Main - Class or
just before : 'Main-Class : gives the error invalid header field name: ..